Popular Mechanics 1923: Vol 40 Index

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Popular Mechanics Magazine ~ INDEX TO VOL. XL Edited by H. H. WINDSOR July to December, Inclusive Popular Mechanics Company ~ CHICAGO

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an Ar Acetyl n Acetyler Acetylet Acetyler Inches Acetyler Acetyler Acid, T! Agair Acids, 1 Tomb Adventu Adverti: Ads P wou Ads Name Unr Pictu! Vacut Car Wind Aerial | Aerial Used Aerials Aerials Aerials | j ' Aerials Aerials Aerona Air Oce Air } Air Pre Aero Shi Airn! Sor Airn) Pil Airn’ Airn _ - ed ’ > mF: 2c W Air Air Air A

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eee Ee Index to Volume XL, 1923

N. Y., Offers Prize for Scientific qcade vy, Subject «eccceweeeerneneeneeee ee eeeseeen accelerator, Automatic for Sawing Outfit. Accide? ‘—Heavy Roof Crushes Auto, Driver SSCAPCS eocceerseececserseesssseseses ae ident, Hunters’ “Chase, Camera Records. Accident—Road Blows Up Wrecking Auto. Accide its—Safety First Sigms.............-. Acetylene Gas Mixed with Oxygen Used as an Ane »sthetic Acetyl ne Generator, Increasing Capacity of 325 794 444 219 395 870 357 455 Acetylene Jet Machine Cuts Intricate Shapes 778 Acetyl: ne, Keep Flames Away from........ 630 Acetylene Torch Cuts Through Steel Two Inches @ BERMUEOs cc ccccccewvenccsesceseseve 210 Acetyle ne Torch Resembles Revolver...... 844 Acetylene Valves, Hints on Frozen........ 949 Acid. Tissue, Silky, Clear as Glass, Proof aoe Against cccccecccccsesesssesessoenecs coce 85 Acids, Metals Affected by, Kill “Germs aeeee 701 Adding Machine Unearthed in Old Inca 87 TOMD .ccccccceccssesccesessescsesesseses Adventures in “Asiatic Paths, by Sven Hedin, 729. 362 Advertisements Ads Printed on Sealing Tape as it is Un- WOURE 60655646200 468s ce eh es eds ses eswe 821 Ads, Store, Reach Mongol Worker...... 736 Name Printed on Wrapping Paper as it Unrotid. «aks dve st@bn ebseen eke Obkba esanae 921 Picture Trains Advertise Communism 522, 350 Vacuum Clip for Windows Holds Display een Card 2ccee 00s eae 6256 0.6 860406 Cane aban 93 Window Display, WOVEN s ac usicccecvondess 809 Aerial Ground Switch, Plug Type.......... 478 Aerial Support, Radio, Wind Dynamo Mast Used O89 6od0s00 ctaanckOe hee < duet ieducedoe 121 Aerials and Kites Source of Danger. ee 245 Aerials, Attic, How to Build................ 143 Aerials, Balloon Radio, to Replace Poles.... 120 Aerials, WEPOCERRE acces soe Ue 6 00exes o Haase 09 Aerials of De Luxe Radio Placed in Ballroom 521 Aeronautics: Air Craft Depot, Floating, in Middle of OCeAE 6 ducsew ewes ansieebate best aes dese 396 Air Police Guard Desert Peace........... 344 Air Transport, Civil, Nations Plan to PROMOS oo 0dneeedknsodnedsaacesesn’ obs ee 52 Aeroplane Aids in Hunt for Lost Treasure Ship cscswablead€des naeée hon ekete wks esas 357 Airplane Attacks, Deadly Gas Bombs Soviet Gis ss wid tates hes sie ad ede ae 736 — Automatic Bombing, Needs No se gi a Pe ee ee ey ee ey Airplane, Baby, Flies 80 Miles an Hour... 354 Airnvlane. Cotton Shipped by, Worn the Next BP snee Soren cee ee 8550s baeure 421 Airvlane, Dazzle Painted, Confuses the EVG@S sussdeediewpess tank emeatinn bos wae 175 Airplane Engines, Inverted, for Armv Use 35 Airnlane Engines, Light Auto Truck Starts .20sakesdeden steed bSsbhaee OeUT 96 Airplane Engines, Supercharger for...... 738 Airplane Express to Fly Dav and Night 244 Airnlane Fire Fighters Soar Over For- CMS i vineeavees ch bwhet 65%0s ee 198 Airnlane Flight, Dark to Dawn, Across Nation FRGOGE . xc.sdtsbewsd esenbPiawas ae 76 Airnlane Flight from New York to Ching FRE 2. si6iWs cine bN dS60ns 2 X20 438 Airnlane Flights, Vertical Lift, Prizes Of- fered Ge esa smancacs chek aened de ee es 325 Airnlane. Huge All Metal, Being Built by Ae rr ile eet in ane 235 Airplane, Iron Ore Island Target for, Bowtie adc ccctited nle ad ate a ea jaca 519 Airnlane Landing, Turntable, Has 500 Pont RE. 600 dGennene balkcan shar aes 223 Airnlane, .ow Powered. Prize Offered for. 325 Airplane Mail Record, Five Million Miles. 65 Airplane Mail Service Across the Conti- MONE wo rrevecccseccercecccesessevescees 58 Airnlane Mailmen "Sleep as Relief Crew Worle: scccies com esa. ka ele eae ad Gaia 290 A'rplane, Monster Bombing. Britain Builds 246 Airplane Photography to Aid Fire Insur- ance CED aéeeedsacarvancecouscce 37 A rplane Pilots, Air Test for............ 928 Airplane, Progress of the............++--- 176 Airplane Propelled by Feet.......... sees 586

Aeronautics: (Continued) Airplane Refueled in —_ ate iy epee Rubber Hose ............ senean Airplane, Rolling Dice by Airplane, Round-the- World’ Trip by. “s Start Next Spring ......cccccsccccvcces Airplane Routes to Tropics...........++. “Airplane” Scenes for Movies Taken from a PS TSS ero eee lane Service Links Arctic to Outer Motor Driven Spader Replaces Plow.. “ee

403 507 820 201 SOON £66000 60s cdvendccncadassbsbadoss 753 Airohene Sleeping ‘Coach Also for Railway SEED woé.05 000.00 ob hae is 6 os ends e000 261 ey Survey of Alaska to be Made - MD swad coe eek oun 0anecednewe & 248 Airplanes, Air Bumpers Guard, from Land- Be, DEED ccc cesevcccsbeceeeeessuvsace 210 Airplanes and Pilots that Reached the Port of Missing Men...........s.eeee0- 890 Airplanes, Army, Hawaiian Fig Groves rere ee ee 38 Airplanes, Army, Inverted Engines for. 35 Airplanes, Civil Transport, Nations Plan to Promote ........60-ccceeeee sebunceoe Lee Airplanes, Flood Lights Guide........... 595 Airplanes Greeted as Gods in Papua...... 185 = Hawaiian Fig Groves Sown Tah Ere ae, Sapna eye Fe EN 38 Airplanes in Golf “Match Drop Balls’ ‘on PE ¢bivsvtusvasscédtcha dnabsuedweken 329 Airplanes in Great yaleemerpmne ME Kicsiveteadehde teow awed + ane . 655 Airplanes, Mail, Ships to Carry i sce atte were 34 Airplanes, Navy, to Survey All of Alaska. 248 Airplanes, Passenger, Have Private Cab- RASS RS ee eee -. 402 Airplanes, Secret Ray Damages.......... 931 Airplanes, Ships to Carry, for Mail Deliv- 34 era re ae ree ee hieaan Travel from London ‘to Constan- tinople in 30 Minutes.................. 572 ay he with Radio Guide Fishing Boats a6 eTUTTT TTT ToT TTT TTT ee 6 Airship , RIE Could House Large Office DE ath ci6ce vhb bn ab kkhe oo wee mene’ 92 Alo Liners. London and Chicago May i EE oe pack vaca kmeaks oh taaeme 94 Airshi Metal’ Like Willow, Yet Strong as —F ea rn an pe 856 Airships Tested by Navy to Guard Lives of es PE 8.0.60 bee tepdO008.0.405 2 OSES SMO O RE OSE 94 Balloon Motor Ship to Fight Moths...... 63 Balloon Radio Aerials to Replace Poles... 120 Balloons, Toy, Hydrogen Tank for........ 199 Balloons, Toy, Win Race in Paris, France 337 Blimp, Z R 1, Glides over Cities.......... 854 ah Flaming Beacons to Guide, of Air sce at ancae i i ma si acs Wi da dahl anil tie evan 447 Flight from New York to China by Air- Cn 4 s46enn +08 Reames see nee be 438 Flights, Air. Taken in Time of King Har- old’s ING & is eit ohh nine bd aa alow Wemekie vce in eae 671 Flights, Airplane, Transcontinental, Mark New Era in History of Aviation...... 655 Gliders, Upward Currents of Air Help.... 110 Helicopter Stays in Air for Fifteen Min- ME a kha tinea aWes oon eels ae oe 0 Kade bib * 402 Helicopters Better Records .............. 77 Plane for Sea or Sky Has Detachable 2 rr ere ar ere 19 Plane, Toy, Helps Train Anti-Aircraft UE ca Sn ko x2 tab ba crete ch oss ..440 Planes Run by Music Roll Without Aia of PE £04650 0d 6 aves Reese b eke Rhee On 6 525 Seaplane Survey of Alaska to be Made fe ree er eee 248 Seaplanes, Refueling. While at Anchor... 735 Seanlanes, Torpedoes Tied to, Launched in re re ae eee 195 African Women, Lips Stretching to Eyes De 2h est the ps koa Os bee ee ae es bk RS 331 Age, Earth’s, “Set” at Two or Three Billion WE ahicae vhs ktedid btw Odeon aee dod tebe 495 Agricultural Implements: Comtrifamenl TROGNOP. ..cccccccccccccsscce 940 Clover Seed Huller and Scarifier.......... 946 Drag for Leveling Ridges and Filling the Furrows on Listed Land.............. 82 Evener, Six Horse, for Plow............ 963 Harvester Thresher, Attaching Wagon to. 287 939

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4 Agricultural Implements: (Continued) Plow, Rotary, Also Pulverizes Soil...... 250 Rake, Odd Looking, Used like Broom..... 113 Rake, Two Rows of Teeth on, Prevents Se ., eereaarrare 506 Rotary Harrow and Drag, Combination.. 799 Scale Saves Farmers Time by Doing His PE cc intabhéan sO RSEN SESE COS be 330 Tractor Exhaust Gas to Kill Rodent Pests 493 Tractor Wheels, “Squirrel Cage.”......... 251 Tractors, “Caterpillar,” Help Till West- i ee GMD circ ab canteen esaesccunas 500 Agriculture: Corn Plant Grows Thirteen Inches in Day 775 Cornstalks Made into Sirup.............. 902 Cotton, Fire Makes, Sprout.............. 375 Cotton, Spain Finds Imported, Cheaper SE NS: ob diaas cecaes Jsdeeuaeee 762 Crop, How Nations, Estimates are Gath- ee Cee (SR cbc ecdudesd onan eens 760 Ditching with Dynamite, by Joe Alex- SEY ore atk okt das ou, Wale ier ete WR ew eu hae 99 Farming Methods, Ancient, Used in Indo- ES: 4 ral clin: ac u's OE ah GUhie bea ad DA ae ae OL 253 Fertilizer, Oyster Shells Used as.......... 423 Fig Groves, Hawaiian, Sown from Air- REPRE err rere 38 Grape Crop Auto Tires Burned to Save.. 413 Grapes Protected by Bags............+.. 434 Ice Age, Freaks of, Cause Good and Bad RES ar eee ee 212 Oranges Gilded by Science............... 904 Pear Pest, Insect Parasites to Battle Ree eR ee eee 562 Plants, Growth of Increased by Electric NN apa i he hae eal Sie ek wie ee 763 Potatoes, Sweet, Sirup Made from........ 7Th4 Rice Planted to Dance Music............ 608 Sirup Made from Sweet Potatoes......... 754 ne See Pee... cbc ca eeecececet dns 938 Sugar Costs more than Jewels............ 526 Sugar. Diamonds Made from............. 553 Tree Seedling Roots Grown in “Splints” Wheat, Smutless Grown to Increase Yields ae Bulb, Foot on, in Auto Ends Jerking of HS pet SG A er Engr paen eae ee ae 420 Air Siuike Tank, Engine Crews Get, in Tun- iat tla en ee ae need wwe * ca he Oe eee 757 Air Bumpers Guard Planes from Landing Re tras nae bh te eS Aes Dak ene ae 210 Air Cushion in Automobile Disk Wheels... 735 ee dll err 525 Air Hammer for Breaking Concrete........ 268 Air Lift Raises and Dumps Dumpless Trucks 72 Air Made Fresh by Ozone Machine..... 399 Air Mail, Flaming Beacons to Guide Flight — aah Pekin eran ne aed aie OHO oe eee 447 Air ee. Letter Boxes for, Put on Streets of ce EEE er ee 773 Air Motors Supercharged to Reach High Ee aaa ey ere ran 738 Air Pockets, Bathing Suit. Nonsinkable. has ! Air Scrubber Rars Dust from Auto Engine. 498 Air Tank on Back Tlsed to Save Lives...... 170 Air Transport, Civil, Naticns Plan to Pro- SESS eee eer rere re 52 Air. Upward Currents of. Help Gliders..... 110 Airdrome, Movable, as Airplane landing. 223 Airman, Pioneer, Death of, Recalls His Re re OR Eilat ws, 3e a << b'k oe & ok aa oe 4 Airmen Find Cycle Race Harder Than Fly- ESTES SS EP rer eee ry eee 438 Airmen, Naval, Use Dead Whale as Target 122 Airway, Lighted, Over Atlantic is Predicted 855 Alarm, Auto Theft, Brake Lever Sounds.... 308 Alexander, Joe: Ditching with Dvnamite ................ 99 Alcohol Lamp, Soldering with.......... .. 471 Alcohol. Pocket Gauge Tells Amount of, ‘in RS rae al RC. so oo 460 wee an pine 281 Aleohol, Sugar, Runs Engine on Hawaiian EE OS SE ARE Alcohol Used in Heatine Tinv Stove........ 369 Alleyways. City. Parks Suegested to Replace 113 Alligator Acts as Go-Devil................-. R46 Alligators Raised on Farm for Shoe Leather 1&9 Alnine Guides, Heroism of......... 0.2.2... 335 Alter. J. Cecil: Wilderness Wonders to Be Made Accessi- - Se Pe eee 2S err Aluminum, Satin Finishine ................ 790 Aluminum Stage Scenerv Fesitv Frased.... 275 Aluminum Ware. Mending Holes in........ 222 Adwentemrn, Wart os cca cdeaccnc ccccscces 788 Ambereris, Gold of Sea, May Have Chemical ee a POPULAR MECHANICS INDEX, VOLUME XL, 1923. America, Discovery of, Cont Seven Thousand DEE nsnbé cemnana den daninuoreant.. Ammonia Carrying Drum, ‘Small. Sikh naan ees Amplifier Guides Ships to Port............. Anatomy, X-Ray Aids Students in Study of 3: Anchor for Bolts in Stone Gets Strength SO TE hod k <5b0 46 acieen cpu eunweehaes sc Anchor, Huge Floral, Dipped as Tribute to PRONE vdcaccctiaves sub easbobe nue aa Gene's Anchor, Shallow Water Rod, for Boat...... Anchor, Two Peg Tennis, Keeps Net Taut. “Anchoring” the Cow’s Tail............e.0.. 638 Anchors for Small Boat Landing........... 8] Anesthetic, Acetylene Gas Mixed. with COO TIO GH Wiis coo is case searasce dees. 357 Angle Plates on the Lathe, Machining....... 94 Angles, Square Measures for Workers..... 61: Angleworms, Turtles and, Become “Farm GE” ns suee ieee saw aun he obelae eee tans 909 Animal, Flying Fur Bearing, Reported POE scwrsccnceedeticnets aadeeeasaiens §21 Animal Teeth, Monster, Found in Rock GT savnecennkestAcwdkensnciudeneeee hess 200 Animals for the Ages, by H. H. Dunn...... Animals—Furs, Wrapping the World in, by ZT. Weeene TROON & 0660058 scene 67-213- Animals, Game Destroying. War Urged on. Animals Kept Healthy in Zoos by Science.. Animals, Life Size Toy, Move by Electricity Animals, Many Strange, in Private Zoo... Animals on Edenlike Isles Do Not Fear Man Animals, Scarcity of Wild, Sends Their Price “Stuffed,”” So Real They Pe. a Breathe Animals, Animals, Tiny. Live in Drop of Water...... Animals, Wild, Brought Up on Bottles... Animals: Antelope as Small as a Rabbit......... Bear Carved bv Indian from Tree Trunk.. Camels Carry Machinery for Wireless Sta- THO Re so ok weer ces be kee espa ees Camels Fumigated before Entering U. S. Camels Take Place of Horses in Russia. Cows, Smallest in the World............. 7 Cow’s Tail. “Anchoring” the......... Sea Deer Killed by Voleanic Ash............. Deer, Wild, Friends of Exile on PE Ka ndaCed ws dex tReet meet eked shes Dinosaur, Skeleton of. Found............. Dog Drives Invalid Cart..........e.-e+-0-:. Dogs, Costly Baskets for...........6.06.. Dogs, Eskimo, Travel Forty Miles Dogs, Hurdle Racing for, Povular....... Flephant, Hunters Capture, Herd Alive. Flephants, Logging, for Canadian Forests Foxes, Silver, Rich Fur Geese, Thousands of. Killed for Pillows Grevhound is Speed Demon of Animal PEL: torr evtede eden sd Denies Diba Horse, Race, Rides in Special Auto..... Horses, “Footcuffs” for, Prevents Them Troms MRUMMING AWAY 2 io cccccccscsvess. Horses Hospital Has Onerating Table.... Horses Increasing in Number...........- ——- Leap River Forming Barrier in OD “viseweewa chicas we ebess sb ek eeeer sos i Tamed by Electricity Instead of Mule, ‘Grasshopper Trap Hauled by, over EEE: gh ssusacadawiasshs 64 0% 600468 s 0 Mules Act as Caddies..............00005: Possums, Newly Born, Climb to Parent's Pe eet cc ke ct etah ake & bh wane eee tees Rabbits Herded Like Cattle....... ee Sea Lions Slain to Protect Fish.........-. Seals Shot from “Blind” Carried on Sled.. Squirrels Aid to Reforest Timberland... Wolf, Auto Races, to its Death..........- Wolverines Make Final Stand..........- Anniversary ,Celebration, Swedish, Aglow with Lights Ant Hill, Tank in an, Keeps Water Cool. Ant Hills, Material from, Used in Houses. Antiques, Bogus, Brought from Europe..... Ants, Army of, Marches Blindly in Circle. Ants Help Bugs Steal Sugar Supply........ Ants, ——" Soaked —* Used as Trap to err ee ee ee Seem to 9 Tiny, Build Coral Island......... 9 Bred on Ranch to Obtain <

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\ Tail Center for Wooden........... 461 \r Wooden, Tail Center for........... 461 Ar \dded to Bridge as Traffic Continues 745 \ — Lends Leauty to Factory , GrounS ceesscessesssdsasvcntnesevesecsceoce 92 rt racket Lamp, Attaches io "Dresser... 115 \) ilse, Steers Auto by Notched Wheel 239 Art Railroad Safety, Aids Delivery of ORBOIG iid ds aro dss OEE be Kd Oe eed 33 \ st, Auto, Folds into “Seat. of ice a 170 \ Persons, Grip for, ‘urns’ Pages of SC Oe ne ee eee 667 Ar ullet Proof, Paris Police Adopt.... 120 Ar Pistol, How to Make an............. 976 \r Poloem te Bie See apenas es ccnces 534 \y Mines, Pests in Cotton Fields Boost 693 Arse Treatment for Clothing Held Dan- ‘ ID sic eee d~e dene eee be hee 6 Oboe 382 6s 326 \ tug Pietures Japanese View of War.. 6 Art udio, Stone-Age, Discovered......... 843 \ hool Students Made Cartoon Faces of MRR 6.044 dies cect et tamndp > tas 910 Art Japanese Woman, Paints Court Lady 237 \ ’ and Printers’ Size Finding Dial 197 \s! ray, Appropriate Camp........seseee. 645 \ fray, Movable, Clamps on Arm of Cc ee Fer er Re err ere rire eke 220 \ ¢ Paths, Adventures in, by Sven Hedin, 362, 729 Ast Seediines. Dis, WG 5 vasa svecscvevens 145 \stronomy—Jupiter’s Night Sky Ablaze th Mase TEOORN oe. cere wacsussnnsnsess 169 \stronomy—Showers of Shooting Stars ther tn Comets PRE. wets sesssetssvecs 679 Astronomy—Star Finder Traces Course of | NOTE cocvesceseessese seas eet srdessscceseepeace 371 \t tic, Lighted Airway over, Predicted... 855 Attic Aertaim, How CO BOUISE...cscccicsces> a, Electrification Brings New Era to \ mobile, An Emergency Fan Belt for an \utomobile, Air Cushion in, Disk Wheels... \utomobile Arm Rest Folds into Seat...... \utomobile, Automatic Oil Feed for........ S08 \utomobile Axles, Assembly Stand for...... 628 \ mobile Battery Connections, Making wa BE Gulsw be ere Dew See 6 OREO Wel ae @ acre ae 977% \utomobile Bed Tight or Loose at Turn of Hane ceviect es obwesveenksecadeeced so a0e8 237 Automobile Body, Aluminum Disguise Make of o veuvanetavewabaiee Terre 38 {utomobile Brake Pawl, Spring for........ 162 Automobile Bumpers, Testing.............. 694 \utomobile Busses, Steam, in Early ’30s in Ne any ae Ca es A eee 253 \utomobile, Cabin on, Provides Home for PEMMROTS: Bi csc 5 6 bs wre epee db wk beet Oe 605,050 64 Automobile Camp Car, Building a........ 147-310 Automobile, Camping Outfit for, Running DORTE cbcaevcunnovseawe on egeb ebb ies ns 0.06 766 Automobile amping Tent Made Without ISOUEES Cicada aseneas’ <tRAK eu Ss CE Reon 117 Automobile Carburetor, Draft Shield for.... 975 Automobile Case Carries Tire, Tools and ee Pe eee ee eee 913 \utomobile Chains in Footrest Save Space 330 Automobile Clincher Rims, Straightening DOIRERGS 24 n3 es we reseed eWess Dawe Seas ae das 621 Automobile Coach Has All Comforts of Re Re ee ear et aaa 698 \utomobile Compass and Grade Dial....... 242 Automobile, Concrete Road Explodes \\ CREE (a6 6 abe ca Sones ae ee ade ees 6 ka 395 \utomobile, Cooker on Radiator of......... 840 Automobile Crankcase, Funnel for Filling... 289 \utomobile, Cripple Drives, Without Using Feet 280

\utomobile Curtain Lights, Repairing..... 70 Automobile, Deaths by, Increasing......... 765 \ obile Device Gives Data on Gasoline el MO eT ERT Tee eT Pe eee or 121 \ obile, Dial, Luminous Tells Driver \ -@.° 4° 3% — SRB eer Perr 421 Au Obile Door Straps, Improving........ 473 \ mobile Driven Tumbling Barrel........ 793 \ iobile Drivers, Handy Cigarette Case MTEC ere eee re ee ee ee 727 \ mobile Drivers Tie Wet Spong to OS iwan ee aS cag dee shea dea ad ened hee 676 A obile Drivers, Warning to Careless. 599 \ obile Driveway, Spiral, in Skyscraper 226 \ obile Emergency Gas Tank Cap..... 640 \ »bile—-Emergency tepair for Full : AO ERPS ee ity <8 eae 807 ’ hile Engine, Air Scrubber Bars Dust Ua inh ethene dinate dhe eee sees cas 498

POPULAR MECHANICS INDEX, VOLUME XL, 1923. Automobile Engine, Lifting Bar for........ Automobile Engine Operates Floodgates... Automobile Engine, Replacing an........... Automobile Engines, Diesel, to Increase Rrra ea eres Automobile Extension Lamp, Storing an... Automobile, False Arm Steers, by Note hed W heel Automobile Fan Belt, Slipping, ‘Remedy “for. Automobile Fan Belt Tension, Dash for. Control PE sana wader nak swe sVouenrs be iesee eek Oane ve Automobile, Fenders Add Beauty to Body of Pere Wee. Ce gaia 5 5 tee awaesanaes Automobile Fender, Folding, Scoops Up Vic- CE. nwhdw eraser aveseresenbdcetOereactad send Automobile, Foot on Air Bulb in, Ends Jerk- Bh ee Aer Pete ee Automobiico Foot Warmier. ..vscccacccccesec Automobile for Every Nine Persons........ Automobile Fuel Made from Yar Sand..... Automobile Gas Tank Cover Cannot Be Lost Automobile Gasoline Tank Gauge, Luminous BE SOs deren cictiueckesereue we wk<s be eeeees Automobile, “Gat” Shoots Oil into, Under CR gC Seer reer re reer oe Automobile, German, Is Peculiar........... Automobile Ground Between Street C: Automobile—Grounding Generator Battery Is Removed Automobile Headlamp Rims, Removing..... Automobile Headlight Reflector for Seeing ys Re ee, PR ee Cee ee Automobile Headlights, Emergency...... Automobile Hearse Gives Way to Limousine PE nove ncbw.ceus tse st beba he CEA ES Canaan Automobile, Heavy Roof Crushes, Driver OO. cect iccsancateee vest wenbsaweans Automobile—Holder Makes Inner Tube Re- SG. SE sg cawke arate eek as ead eee Oe Automobile Horn Fixture for Repairing... . Automobil Improvement on Gas ‘Tank Pe Lares date eee she were CEES aR eek Automobile—Lead Pencil for Spark Plu REE. aves h bnaes Hine ceDeee wa ekan a eee ehes Automobile License Plates, Preventing Vi- PO - covav uke cole ca aaa dena adeie ae we Automobile Lights, Emergency ......... Automobile, Lights Mark Stolen, As Warn- ee Se eee: vo vectra se Seana sans dh teeewe Automobile Lights Under Fender Remove SO RS ee Pree er e a eeee Pr e Automobile Lock Alarm, Whistling...... - Automobile Lock, Keyless, Acts When Car POG sckeaedewe er codseseawegassev Seen e ase Automobile Luggage Carrier Hidden When Be, Se SFO ak wae cme bee wae ok eee ond salon Automobile, Marooned, Takes Lake Ride on De Se otc oa e's Wah bed eae dee ae «bees bs 08 Automobile, Mat for, Running Board Pre- WORE ee ok 65 6 0.05 005% 65 2b 6s Ke ORSe e's Automobile Material, Old Ship Cut Up for. Automobile, Metal Frame Protects, Radiator Automobile—Motor Bus Repair Plant, Lon- 5 Cee TE SEEN TUTE L EL? COLTS Tee Tre Automobile Motor Heat Cuts Down Gas Teer reP TT eUrL Tee Perr Tt Automobile Oil Waste to Heip Solve Heat- Sh. Rr eee rere et Automobile, Paper Bags for Covering...... Automobile Parts, Bench Trough for Wash- Ss a ee Am sb 66 ORR ON We WES Sa 28 eS Automobile Pilot Light Turns with Steering ST err Te ret rer irY Terre Automobile, Progress of the.............6.. Automobile Pump for Fire Fighting....... Automobile tace, Pikes Peak, Bars Freak eens Goo, a in uel Ge eh bah be oo eR ee Automobile Races Wolf to Its Death..... ds Automohile, Racing, Takes Gas and Oil “On Og EEN SE eee ee Pk eet Pe ‘ Automobile Radiator Cap, Light n, for ROO INE: cues ses eneet an eivte OCS E40 saw'O Automobile Radiator, Cement and Cloth Re- i TE cals ood an bee Jel ee Shs OS e ewe - Automobile, Radio Violations Detected by DE chen Fawend bh dO ess rebhaankeon soa Automobile Rear Axle Grease Noises, Hints OTR sea cee eee ss eeSeeeseesesesessesesseseseeece Automobile, Red Mirror on, Serves as Tail [nt tit hisi ahah anes ns be SOS Odd wn eae oe Automobil« Refrigerator, Iceless Keeps Food Cool Anutomohbile Automobile Tires Prolongs Life Spreader for Riding, Rim ( *hanging Gato~) 1-1 ad 336 943 239 134 323 329 160 166 420 689 586 561 321 507 519 814 307 66 646

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6 POPULAR MECHANICS INDEX, VOLUME XL, 1923. Automobile Rim Tool, Jack Used as........ 639 Automobile Kims, Kemoving Scrap Casings SE Jet aede Va ee Sheet bees eek aed eee 629 Automobile, Safety Roof for...........00% 8359 Automobile Service Station Specializes in COMORES SIE . coececccnstrenancencicsesns 55 Automobile, Shade on Light for, or Home EAMER BOR, cs ccccescscccvcsvesreceseses 678 Automobile Snade, Rigid, trotection from i ass ae haem aie oo 6 0sk bbe eke BO ee herea 66 2 Automobile Shield Protects Driver from OE ere ee eer ree ee 165 Automobile Side and ‘ail Lamps.......... 645 Automobile, Special, for Nace morse....... 821 Automobile, Spotlight with Side nays for.. 57u Automobile Springs, Lubricating..........- . 626 Automobile Springs, Vluing.... 6... ee ee eeee ou Automobile Steering Device Lessens Jerks Me TGGED 0006 6 ce ecciceeseeseeotnseve se Automobile Stop Signal Operated by Buttons on Steering Wheel........2ee cece ee eeees 124 Automobile Storage Lattery, ‘Lesting for ED ntact ae wewe sub ent 80066500 0S eae Nh ee 302 Automobile Stored on Sliding Shelf in - CARTERS cccccisentscrescicesessvosenssenes 927 Automobile, Straps on Steps of, Keep Lug- gage 8S Safe Per rrTrer er Tere ee TTT ee Automobile, Swing in, ‘Also Makes High SE ccc cts die a scapes b USSG hs 000-40 0044 395 Automobile, Tank Like, Wins Race........- 611 Automobile ‘Theft Alarm, Brake Lever PCF CCT eC CTT CT TTT eee Automobile—Thermostat Control for Car- buretor Needle Valve........csescseceees 480 Automobile Tire Gauge for Each Wheel.... 86 Automobile Tire Paint, How to Make...... 625 Automobile Tires Burned to Save Grape Cro ee Terr rrr TT errr TTT re Te Autoenobile Tool Box, Has Combination Lock oe Automobile Tool Kit in Door.............- 97 Automobile Tool Tray, Convenient......... 135 Automobile Top Repairs, Cement for....... 22 Automobile Top, to be Dry Betore Putting NO os wah ed Aoi e 6m he 68 6 MOIS Cena oe ee 795 Automobile Tourists Camps, Equipment for ses eee aS ie os Sarcastat Sehr ia deal ie: WT a a Ot Oe 129-2 Automobile heen Michigan, Tour a COGREET sce nccccrersacscnrersscrvssessceses 2 Automobile ‘Trailer Tests apne BERIT «cco e trececseeecesiceteasans sexe 0 Automobile, Trap to Catch Thief in... 893 Automobile Trouble and Tonneau Light. 154 Automobile Truck Engine Misfiring, Curing 289 Automobile Truck Horn Under Floorboards 309 Automobile Truck, Light, Starts Airplane errr re er ree 96 Automobile Truck Top, Detachable......... 291 Automobile, Tower, Raises Camera “Above BenGe CF CHOWS 2c ccvccevescvessccsrecss 332 Automobile Upholsterer’s Stuffing Tool..... 632 Automobile—Upholstering Nails Improve ee, a ee eee eres 647 Automobile Vacuum Tank, Filling the..... 621 Automobile Van Body, Steel, Protects eee 2 TOR ick ccresecreadeuseds ewes Automobile aoe Fitted to Hose Regu- TERN DW TOORGP oc cee ncdedcraseceseasees Automobile W Eccl Absorbs Shocks of Road, ee HO. OE. 6 kc tc vst eresisssewgees ss Automobile Window Regulator Uses Gears. 89 Automobile with Armored Turret Trans- DOPtS HOOK WERE Gic cs ccccikcvescevacsssses 727 Automobile with Wheels Shaped Like Eggs 861 Automobile Work Stand Tilts Car at Angle 85 Automobiles, Automatic Gear to Replace CEO: Bhs cb wcdvcctrscnevacweeessusiaese 824 Automobiles “Float” Over Bumps on Blocks CS Ne ccc aka wenececn eee 6060s ea be 66 oe 884 Automobiles “Looping the Loop” Stunt in... 775 Automobiles, Maze of Walls Siows, at Rail- CN SI ic ccckieccdchswewenunsoeess Automobiles—Motor Busses Haul Children to Consolidated School...........seesee0. Automobiles, Murderous, by H. H. Windsor 47 Automobiles, “Pepping’’ Up Old............ esa 9 Automobiles Stopped by wy booed | Radio.. Aviator, Pioneer, Death of, Recalls His Feats 4 owe Find Cycle Race Harder Than Fly- ng Aviators, Naval, Use Dead Whale as Target. 123 Axle, Emergency Repair for Full Floating. .807 Axles, Automobile, Assembly Stand for..... 628 Babbitt Bearings, Turning Long........... 795 Babies, Boiled Butter Helps Fatten......... Babies Checked in Lockers by Busy Mothers 2 «lz Baby’s Brain Photographed................ 97 Baby, Atrican Mother Carries, on Her Head 24) Baby Carriage ‘urns into oneaen or Crib. 259 Baby Crib Masily Carried...........cceeees 526 Baby Crib Made from Barrel. vente 977 Baby Guard Teaches Infant to ‘Stand: hem ieere 275 Bag, Grass, Old Skirt Used as.............. 646 Bag Is Clothes Closet for Travelers.. ee 235 Bag Holding Device for Large Laundries... }: Bag, Shopping, Has Scale to Weigh Contents 26) Bags, Coal, Holder for Filling............. 945 “— Gou, Locked Pockets ror, to Carry x), MP EeervTerir rire re eT eee ee Bags, Golf, Mule as Caddie Carries. ose 445 Bags, Paper, for Covering Automobile. ce atin s BOBS PROCOSE GEAR sc cc ccvesscccrcssensscce 434 Bags, Seats and Leather Chairs, How to DEE snc ceatebeadiatenctkedwee ban cece 473 Bakery School Now Liquor Plant Tree ee 156 Baking, Bread, How, Has Progressed...... 5sg Balance, Most Accurate, to Test New Theory 118 Ball Bearing, Large, ot Enormous Strength 1) Ball, Flower Fairies and Golden Bird Ap- DOEAP At 2... rcccccsesesecceccrscesccccccns 519 Ball in “Cracked” ‘Window Attracts "Atten- ear rrr re ae 44 Ball Park, Carpet Saves, from Flying Hoots 930 Balloon Tire on Auto Wheel Absorbs Shocks OE SE. Kacdins GAdadd ceded ees aeonbebk een 883 Ballroom, Aerials of De Luxe Radio Placed ON ws des dl Sia Mie el Nook Ake eb eh wp eee ES 521 Balls Dropped on Green from Airplanes in EE NE. 56nd ainul'esmb be oa ke bce anaatex 329 Balls, Golf, Process for, Guarded as Secret... 833 Balls, Home Run Secret Sought Inside of. 3 Bamboo, ETIGGC OF, 1M JAPON s 6c cc cde ccccene 764 Bamboo, Phonograph Needles Made of..... 659 Band Saw, A Heavy Duty, Bench.......... 627 Banditry and Mechanics Conspired, When, by Sidney McNeill DUCHOTIONE...ccsccosss 508 Banjo Effect Produced oh Piano........... 316 Bank Funds, Automobile with Armored Tur- PR ON - vod uede8 ibene beds dace eee 727 Bank Vault Vestibule, Reserve, Weighs Over Se EE, cha ei cen wedaewtes eebs cdaeeanueas 79 Bar, Lifting, for Auto Engine ee re et ae 78 Bar’ Stock, Bevel-Cutting Tool for.......... 952 Bar, Supporting Bee re 452 OT ROG Wite WimGer, ‘Bac cic cccccceccacecss 971 Barber Poles, Displaced BF COOKS, occccece 445 Barber Shop Pole, Brass Bowl Displaces, PE Su dawhntetss dacdc ada na dean aees 238 Barges, Buildings Moved ‘Across River on.. 359 Barges, Tractors Tow Canal, and Fell Trees 687 Barn, Grain Elevator in, Is ae PEE wa civews sks b0 4d cenaied bb ew cede s “ 50 Pe, BUG BET cbs kccnrewbenbeddeecscadue 951 Barnacles Away, White Paint on Ship's Bot- PO! CE: 6s tN ckh od eww hes dade dade e.s 773 Barnard, George: Music Notes Defy Mechanical Typesetting 433 Barometer Dial on Tower Instead of Clock 251 POEOUNOOTE, TIGUEE coccccccccencvesdvucs 948 Barrel, Auto-Driven Tumbling............. 793 Barrel, Baby Crib Made from.............. 977 Barrel, Rolling, in Frame Fine Exercise... 515 Barrels, Horseshoe Wrench for Oil........ 963 Barrels, Rack for Handling Heavy......... 970 Baseball Bats, Homerun Sluggers’, Made in Fra ae are 229 Baseball Bats, Wood for, Imported from Tt. Aiteckvekhwnws van ad Reba ae ede a ease 849 Baseball in “Cracked” Window Attracts At- DN Sid awbe FE eee ahead eed ba dens dae kahss 44 Baseball Pitcher, a Mechanical, for Batting PEE Ped ce chant n0a shaded dns banca cane 649 Baseballs, Home Run Secret Sought anside —— Pe eee eee eT eT ee ee eee eT Tee Pe Te eT 3 Basins, Huge, Dug for Unmarketable Oil.. 231 — Clothes, Has Legs at Touch on Han- Ce EEE TT Or ECCT ETP CET eee 167 Basket, Leakproof, for Flowers......... iwie, oan Basket Liners Protect Delicate Fruit....... 116 Basket on Pole Hives Bees Safely......... 479 Basket, Waste, in Desk............2eceee0. 272 Baskets, Collapsible, Simplify Fruit weeipeeed 289 Baskets, Costly, for Dogs............... eas 562 Batch Hopper, Removing Dust from........ 465 Bathers’ Chair Float Moved by Paddling... 232 Bathers’ Jumpers for Walking to Beach... gs Bathing Machine Driven in Water by Pedals 32 Bathing Pool Water, Nature Heats.........

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- &e elz v7 2U1 25y + o2d y ar? vii «io 046 «09 945 446 rt 434 473 186 ~ me S1CTCN OD =a oie i thr & ~~ oe

POPULAR MECHANI( thing Sport, Latest, Fish Board Swim- mitt EO os ccknsee son canteen eer nd oneren eee 229 thing Suit, Nonsinkable, Has Air Pockets 615 ihs, Hogs Receive Shower, on Way to Tet, | SPPrrTrerrrerrrriin, Ca 743 ithtub Spray Turns Tub into Shower Bath 228 thtubs for Cooking Vessels............. 137 ts, Homerun Sluggers’, Made in Small SHOW sscnn ee cccgewodesies a aeinaiaiwe aceea 229 tats, Wood for Baseball, Imported from COR Fs Keddie Khas CEN end eae OR eknt heen eee 849 Batteries, Care of Radio Storage........... 973 hatteries, Storage, Windmill Charges.... 833 battering Ram, Fire Ladder Folds into Pole SetvG OE vcs ck aensccassedvatduteneneeeen 493 battery Action, Water Poured into Flash- Mate TOES. ox cenapesd dab staadiesees cednws 860 Rattery Box Straps, “How to Make......... 317 hattery Charger, Building a, by F. L. Brittin $11 hattery, Cigar Lighter eats from Hidden 773 Battery Connections, Making Tight......... 977 Battery, Grounding Generator hen, Is Re- ga for ee Se ae 814 Battery Markers, Thumbtacks Used as...:. 136 Battery, Storage, Testing for Water........ 302 Batting Practice, Mechanical Baseball Pee DOE org keds shes dameeese eas benes dé 49 Battleships, Old peeps Wooden, “Live nee Te BOGE sk keeecadéiwireerdcgeescibecne 169 Beach Land, Ocean “Wav es Harnessed “to ee ee an eee 86 Beach, Oysters Attachea to Gun Found on.. 522 Beacons, Flaming, to Guide Flight of Air RE Seah og ees cach ane tab ae kee aide acwtoe ce 447 Beacons, Safety, Electric Lifeboat Lights as 37 Beam Micrometer, Making a.............. 633 Bear Carved by Indian from Tree Trunk. 231 Beards, World’s Champion...............e. 48 Bearing, Large Ball Thrust, of Enormous POC Abid bead re he Nass Rebeiws b4d 00 Swo 11 Bed, Auto, Made Tight or Loose at Turn of PE Ate ene Chane ekd kuces bes beac eee e 237 Bed Converted into Chair........cccccceccs 394 Bed, Dig New, for Isar River............... 538 Bed, Folding for Campers.................. 588 Bed, Folding, Projects Out of Window..... 588 Bed of Boughs, How to Make..... hina ad eee 479 Bees, Basket on Pole Hives, Safely......... 479 Gees, Color Blind, Must Learn Way by PE Staten eeped sakes we eee hatae cee 831 Bees Kill Lizard and Turn It into Mummy 604 Bees, Mails Bar mEpeeten Because of Dis- Pe eee ree ee eee ere 625 Bees Not So Busy ‘as Written About....... 493 Beeswax as Lubricant for Tail Centers..... 126 Beetle, Bug Sought in Orient to Kill Plant 574 Beetles Aid in Growing of Oranges in West 167 Beetles and Time Endanger Westminster Se DE, arts eres sons 4

Page 8

8 POPULAR Boat “Seaconnet,’’ Sinking of, Is BEVREGEY. GE CRG BOG 6c casein he vewentin Boai—Sewing a Split Paddle............... Loat Steers Lltseif with a “Gyro Pi Boat—Submarine, Worid's Largest, Launched BOCKFEEIY ees ccece sess cvssseseerevsrsessesssce Boat, ‘len ‘on, Adventurer Crosses Ocean in Boat, tender Reduction Gear, Giant, Used Se OR ES eer oe eee eee ee Boat, ‘Lype of Modern Speed..........seee8 Boars Aurift for ‘ihree Weeks............ ° Boats, Airpianes With tKadio Guide Fishing, LO PTCY acccccssessesesvesesevecesesevues Boats, buiging Hulls [f0r......cscccesesvns Harber of t% Lights as Salety Boats, Fishing, i boa.s—Lilevuacs Boacs, “Loud Speaner” Guides, to Port...... Buacs, Kouna Motor, Useua tor Playing Water Bite BIG) cieciakcacwasswesssasedensin Boats, shaliow Freight, tiaave Four Pontoon huaders eer ree t - ial so inyue e eem enenae Boats—Suvimarines, Japanese Make Warm Water VOYABE .csccsevccvccceces wy oes t joacs to Carry Planes for Mail Delivery Boats—Warships, Vid ‘L1isne Wooden, Live Lonmer than Steel... ccccccccsccscscsvevs Boats, Weatner borecasting trom, While at BEB ceoecs esos esceesseseeveorereeesenseveaeseunes Boats, Weird Rites tor i ihey Sail for Orient Women | SLOp, New Foreign “Cotton POrts. «+ Spinners l’res- nload, in Automatic, steam, Carries boats, bovbin Bouer, sure ILnOrieus

Minute Boicr Tube Tool Cleans ten a ~ Loiier, Wash, Simple Ciothes Washer trom. Boilers, Smokestack Made from wld witchen Boll Weevil, Eiectricity to Aid in War ROBINS 2060 6 chew Herero krecéreeteaeene vse Bolt Weevil, Smell to Lure, to Its Death. Boit and Dowel, Combination...... aes Boit, Double Lock, Nuts on, Cannot Work Loose inte 6 2a @e' £26 866 8 SOLO aCe db 04.65.90 Boit Holder for Drill Press........--ceeseee Boit, Nut that Locks OM......ceessccccscvss Bolt, U, Replacing Tool........ oh Guna Boitless Foiding Stove for Campers........- Bolts, Anchor for, in Stone Gets Strength Creat PU «case svees A hash a ON os ie Bolts and Studs, Safety Cut im. ........<sees Bolts, Csaamp, for PUMP 2... ccccccrecvsccece Bo.ts, Feiloe, When, Become Loose........- Bomp, Wireless Ray Conirois..... ai, was ee Bombing Airplane, Autoi.atic, Needs no Ne A a ere Ss er Ce kore Bombing Airplane, Monster, tri.ain Builds. Boin s, Deadly Gas, Sought for Airplane Attacks yr erre Bouibs, lron Ore Island arget Bones—Fossils Prove As.a AWOTICE. 2s ccc ie danass Bones, Human, Image of Bones of Prehistoric Monsters Airplane art of Found in Nativre’s Trap ... a eee a Se owls eho ete Bork Binding, Ancient, Riva’ed by Woman. Book Cover Hides a Vanity Case and Mani- cure Set Tra eCTERLUCLIC Cerrito Ler Ge ne. IN noe a) 5 wa wierd anon in ata Book, Grip for Armless l’ersons Turns Pages of TePTrererere. Book, Odd Remedies Found in Old........ Look Scrapbook Making for Shut-Ins.... Books, Library in Park isends Visitors..... Bookshop, The World a Mighty............ Boomerangs, Race that Made, Vassing Away Boot Washer, Automatic, Used by Japanese Boots, Fishermen Wear, Mate of Shark Hide Boots, Keeping Dirt from When Excavating Por ngs, Cast lron, Molded into Briquettes. Borneo, Wild Man of, as He is Today...... Botany Plants, Cross’ reeding of..... + ait Bottl Cap Lifter for Milk Is Sanitary and Useful bag ed ocean sa sitzns Sen ene ase ea-ee Bottle. Corked, Dropped in Ocean Has Long Trip 2 a sie oe ee a a ore ees ee eee ee Bottle Floats Across Pacific Ocean.......... Bott'e, Ink, Holder, Homemade.........-e.e-. Botte of Mystery Forecasts Weather...... Bottle Opener Also Opens Cans and Fruit Jars ere e re. eee Tye Care Se Bott! Vacuum, Cap Spring for, Keeps Cork 3) ee eee er ere Tere ee ree? Co. . Bottle Window for Log Henhouse.......... Bottles, Nursing, Wild Animals Brought Up OTL cence eseeeeeeeseseveceveteseseeseese eee MECHANICS

16

&9 557 483 75: 268 120 146 240 INDEX,

VOLUME XL, 1923. Bowl, Brass, Displaces Barber Shop Pole in INNES cicla'd are an Whaol b's 0nd e & aL bowls, Fishes Swim in Glass Tube Dom, @ Bwimping Wee éocs sis dicacsneenccas. Box Lid Counterweight for Holding Open.. box, Shoe Polish, “Built In". boxes, Cigar, Musical Instruments from, by ', F. Cord ‘ Boxes, Flower, How to boxes, Shipping, Up boxes, crete THOLCOUER CL CARL PERLE CPU ee ee boxes, Wooden, Marking Joining

Boy, New Serum Cures, of Sleeping Sickness Loy Scouts Round Up 10,000 Goats, by UWOROLE WE. DERPORSPOS .c.nieckcétceesde ven ‘ Bracket Arm for Lamp Attaches to Dresser brackets, Wall, Movable, for Lights........ Brain, Child’s, Photographed .............. Grain Unharmed by Rays That Kill Tumors Brake Pawl, Auto, Spring for.........ceces nel i NEI 0 a 'a dihodiw a iaw wie elwdle alae &

Brake-Tank Air for Engine Crews in Tun- UE ecu ka. de aaa ie wa wie hw ew we asad Brake, Wagon, Increasing Power of........ prass. Cutting CHOMICEEY.: « ..iscsciscceesens Brass, Oxidizing Copper and.........cesscees brazing, Enameled Ware Repaired by...... Gread, Baking, Electrical Machine Keeps TEP OM BOO BMMIGC OE oi iia cideevcsases Bread Baking, How, Has Progressed....... Brick-Laying Machine Sets Pace for Work- En. <6 bee ay aco eS ed < eee Oe Whe ke 6k oe ee Bricks, Coal Cinders Turned into Building. Bricks Made of Pulp Extracted from Castor ERE EERE ee en ee ee ey eee Brides of Ancient Nile Cost Three Dollars Bridge, A Strong and Durable......... ' Bridge, Arch Added to, as Traffic Continues. Bridge Model, Williamsburg, Built for Ex- pet eee ee ee ee eee ee ee ee eee ee Bridge, Natural, to be Made Accessible, by eI SM sk. % Sasol ws So al ee! rg tor ee ah ro trridgwe of Bamboo in Japam....cecccccsccces iridge Pavement, Rubber, to Stop Vibration ir Wr I I Bridge, Sagging, False Rock Bottom Causes I

idge, Spiral, Makes Queer Entry into (gp Pere erer cree ee rr ere ee eT ee bridges, Gives Warning of PEN 55. ck hs oboe Oc ae beeen be ee Briquettes, Cast Iron Borings Molded into. Brittin, F. L.: Battery Charger, Building a..:......... Increasing Wave Length of Receivers... Broaching Tool, Improved, Aids Production Bronze, Ancient Empires of, Overthrown by RN ion dhe de ed adits eee ae ore ee eet Bronze Tree Marker, Neat, Adopted by Colo- RR Dad Sao ala’ mie a ak Men ak and Coat Hanger Combined........ and Vacuum Take Dirt from Cloth Carries Polish or Paint in Handle Brush Brush rush Brush, Shoe, Revolving, for Passing Shop- EE ii ond Gt end a Mab Oh eS eRe Rs we ee a Brush, Suede Shoe, Picks Up Nap........... Brush, Vacuum, Run by Electric Motor..... Brush Wheel, Wire for Cleaning Flat Sur- SO Evia awa ce a Vmse ae ed ie agne% ae w ool eeu og Re RS SS eee oe Rrushes, Two, Contained in Vanity Case Buck, Simple, for Sawing Cordwood........ Bucket, Sap, Mason Jar Used as....... ah a ee re ee eee Buckets, Comfortable Handles for......... huffer, Water, Stops Train Without Jar..... Rug Sought in Orient to Kill Plant Beetle. Puegy, Baby, Turns into Rocker or Crib.. Rugs Aid in Growing of Oranges in West.. Bues and Time Endanger Westminster Hall DEED 2 cn a oa awe bata ade h alba e dee one ek eee Buse, Arrow Potion tO. BI: sis cesses dees Bues Drawn to Bright Light Become Fish I ard ex nh ee REA Oe a ee ha ele eee Puss. Binding... Caged at POts.. «ios s0 reas Ruildinge Cornice Clearing Railway Aids NE ks. o:n.2 666 bbe hh ws Sone cue ed ae ee le Building, Fireproof, Granted to Smithsonian Institution SR ee ee eh Ad oe ener Building, Five Story Office, Only Ten Feet Wide . Ruilding, Futurist , Art Give s Weird Effect tc Building—Hotel Roof Garden, Japanese, in OW TOPE cases ieGevdue Wkuce es se eees biaw Building—Hotel, World's Finest, for Japan 1] ana

I

Page 9

POPULAR MECHANICS INDEX, VOLUME XL, 1923. i) in ding, Office, has Model Golf Course..... 593 Camera, Lens Ends Use of Cloth over Screen e g ding ailroad Station Wrecked by = GE cece sense cece vemoveseereeeeeensececes -» 360 iz 5SY cean CURFORIO 2s cress icieuine's sosvece Camera Lens Filter, Pocket, Adjustable.... 357 1 ding, Roof of, Hothouse Built i Snpaaea . 442 Camera Lens Shade, How to Make.......... 470 4 iding—Skyscraper Has Spiral Drive for Camera Men Risk ‘Their Lives in “Shoot- 1s L COREE. nat so 6.00 Ramee autbeemndes wie han 226 NY 4. 84 6d o0 be REE hak nee eaueeus 904 y ; lding—Skyscraper Vlanned for Univer- mn Camera, Meteor Caught by Camera in Flight e. g CHT evens aue dc see se ede ROR eee en oO 4 EC wna eneMap a webs Obed 66 aed we 905 : " ding, Street Car Wrecks, Ww hen Brakes Camera Mirrors, Re flecting, Replacing...... 321 Ps 1 eee eee eee ee ee ee 198 Camera, Secret of Submarine Kevealed by.. 517 , ding, Thermos, Saves Fuel. ‘and Helps Camera, Small, Soft Focus Effects Produced .- ; COW CORRE - wands cde cue eeatesutetence toe 220 Wa %.i SORES ae ae ow Gees eae ane a 315 18s iding, Two Story, Moved Across 20-Foot Camera, Time Exposure with Hand..... se 6B ' ROM « d.6d0- 460.00 406460b8 dnd 00 0b bs eee - 268 Camera, Tiny Movie, Takes Full Size Vic- sa 1 iding Westminster Hall Roof Endan- Rr ere eee ee Cee ee 178 y vered by Time and Bugs........... Sctene BOO Camera, Tower Car Raises, Above Crowd... 332 a ilding, Working on the Side of | err eee 625 Camera Tripod, Stepladder [Extension for... 972 “ 11: iilding, World's Largest, for Furniture Camera with Two Lenses Gives Depth to 60 ‘.. See eee ETT rere Core rece ae Rae my ere pe eee eee re ee 736 . 17 ildings Moved Across River on Barges... 359 Camp Ash Tray, Appropriate ers RTT ee -. 645 "'s 326 ldings, No Limit to Height of........... 573 Camp Car, Building a.. Ae .. 147-310 16 ldings Salvaged by Loading Ground Camp Chair and Table, Folding..... 166 , 474 With Pig’ TRON. cccovccscsvesvcscccevvcesees 106 Camp Stove Cooks Meal for Ten I rsons 395 ~ iildings Set at Angle Gives More Light Camp Stove, Gasoline Flatiron Used as.... 145 757 ee | SPP ere orer re rer eT Er ree 279 Camp, Stove, Serviceable ...........ce. > Sas 317 lb, E lovtiic. in veepenese Gets Liquid Campers, Boltless Folding Stove for........ 445 15 TREOUMM WICK cccdvacanseavseessnwces ees 689 Campers’ Coffeepot Won't Burn Hands.. 267 O58 ilb, Eleetric Light, Millions Employed in Campers, Electricity for, from Portable 304 Se err ey rs eee 538 PE aso tlhe hea eee os kab ah ie 60 de een . 2t7 Ss ilb, Pressure on, Spreads Shaving Lather. 555 Camptire Photograph, How to Take......... 324 171 illets, “Boat Tail,’ Increase Rifle Accuracy 35 Camping, Exhaust Gas Stove for........... 970 -_—< fullets, Homemade, Recall Frontier Days.. 752 Camping Outfit Carried in Case in Auto.... 913 ” umper, Folding Auto, Scoops Up Victim.. 166 Camping Outfit for Automobile Running 747 bumpers, Air, Guard Planes from Landing I cdndnheb es ae ne dod bbe Oke b ae 948s wa ease 766 68 CGD. accede tk a tenwhidbaeee ssa ced'e eae eas oe Camping Outfit—Pocket Kit Cooks Meal for YY Bumpers, Testing Automobile .............. 694 TWO PeTBONS 2... ccwscssccseseccsecssseres 415 R44 Rurglar Alarm, Simple and Effective....... 647 Camping Tent Made Without Ridgepole.... 117 50) burglar Proof Lock, Making a............. 650 Camps, Auto Tourists, Equipment for...129-294 964 iriats of Mongolia Have Queer Customs... 9 Can, Fire Fed Electric Stoker Puts Ashes in 820 , 74 furied City in Jungle Larger Than Rome... 368 Can, Milk, Covers, Tool Removes........... 970 - Burne, Eaget. Bays COre GOR. cc cscaccasvees 846 Can Opener Also Opens Bottle, and Fruit Ae Sy, tus, Motor, De-Luxe, Built Like Chair Car 420 pS PPT TTT CUE Ren Tre cere ee 268 y bus, Motor, Sight Seeing with Folding Top 769 Can Opener, Pitcher with Spikes in Top 11 liushings, Radio Panel, from Valve Stems... 809 OM! OPEL SPECT ERE CoE Oe Te reer er ee 927 « 764 lsusses, London’s Motor, Repair Plant for.. 87 Can, Tin, Rotary Blower Made from, by n 40 busses, Motor, Haul Children to Consoli- OS errr rrr ere ied .. 463 et aE CD, ii coc 5d urine is we cae an 81 Canal Torrent, Panama, Greater Than Niag- oO susses, Steam Auto, in Early ‘30s in Eng- PE: act savy nae rr i . Kaha wkahe 40 - 21g OE Sibided Oecd Wide a RAS ee hee i ace 2 ks 253 Cancer, Lead Tests ‘in Treatment of. bactene® 44 if Busts, Camera Aid to Se ulptor’ in Making. 230 Cancer Not Yielding to Research and 92 busts, Linecoln and Grant, Put in Hall of Radium thee yg eeesewe ewan wees ica, oe 83 6, Ee errr er ite b ace eee sD 260 Cancer Treatment, 2 X-Ray Used 8 Hours in.. 403 butcher, Lowell R.: Candles, Fish Used @8........cesescecceses 931 811 Tire Repairs in the Home Garage, Candles, How They Are Made........... 914 81 641, 803, 965 Candles, Searchlights, Forty,: Equal Millions n 121 Butter, Boiled, Helps Fatten Babies........ 326 | ERT GE EEE ee ee . 539 y Butterfly Farm, Rainbow's @olors Made on 392 Candles, Ten Foot, Making for ‘*hurches 178 . 5d4 buttons Made from “Ivory Nut” of a Palm- Cane, Fixing an Extension on a is lind Man. 636 - LAO BPOO scccscocs eae ag atte A ale aio ac 408 Cane Telephone Aids Deaf...........-+546- 255 111 Cannibals Hold to Early “Law”............ 769 145 Cabinet, Dining Room, Contains Extension Canning, Washing Machine Used for....... 315 120 BOE 5648, baede « wedi datbi adie ehhaneenie d= a 114 Cannon, Sun’s Rays Make Alarm of........ 917 . 242 Cabinet Doors, Sliding, Novel Arrange ment Cannons, Three Million, on Uncle Sam's | - Oe conaneue inte bah seas Adon ova hile Bia o« S08 Hands ... eee eee eee teeter nese eeees 273 30 Cabinet, Medicine, “Making a, More Con- Canoe, Indian, " Paddled on Historic Tiber 198 WEEE. cevssces Teoh wade Pa Cee eek es 802 Eee Terr er re eee eee 377 » wer Cabinet Scraper, rt Good. Ey tee a 462 Cz —Sewing a Split Padéle sak Sah ita iy tartare cal ie, Pras 813 - Cabinet, Stationery, Improving vhs oe 306 Canvas Top, Detachable, tor Open Truck... 291 766 Cabinet, Tool, Homemade Upright.......... 139 Canyon Wonders to be Made Accessible, by 932 Cabins, Private, Passenger Air Liner Has.. 402 J. Cecil Alter Co eeo eee sererseeeseceseseeis 41 115 Cable, ‘Mountain of wampee Spans Ocean in Cap, Bather’s Hair Kept Dry nd Guard 307 Deep Sea .. PE i AER LEONE .. 670 UNGer 2. .ceesesesesesccreccessecscsercees 572 309 Cable, World’s Largest, For Atlantic Ocean 57 Cap, Chimney E ixtension, One Piece. ........ 626 170 Cablegram Time Reduced by Mechanical Re- Cap, Gas Tank, Emergency.............++. 640 aod SE Wea bao 5 05: 00's Sa Scot Se Waa a whe be 6 55 Car, Building a Four Passenger Hand, by _ Th. Cactus, Thorns of, Become Phonograph Geo. A, Luers..... Sach hk * Sotho lg Bo Slchiclidiae r++ 405 oe: ELON, OES ES ce te Carbon Monoxide Gas, Deadly, from Gas 187 Caddie, Mule as, Carries Golf ~ SS iecetaeei gees tas 446 PNG in ehain eee Wes 0cene sees Bea easavaws -+ 326 : : Cadium Sticks, Protector for............... 957 Carbon Monoxide Poisoning Test Made in | oo | Cage, Lofty, for Rare Birds..........20221: 832 Three Minutes..... ery recae Cewn yee naied 165 34 Cake Dough Mixed by Electric Motor....... 582 Carburetor, Draft Shield for......... ores 975 : Caleulator Saves Farmer's Time by Doing Carburetor Needle Valve, Thermostat Con- San Bh Oe RL Se ane Ser eiagt 320 NE NN eg sa tiki 0 aru a pitts Mea 8S 480 gor Calendar for Clock, Tells, ‘Date. Day and Card Game Scorer Aids in Avoiding Mistakes 586 3 BOGE is ccks ie i een i we NA mI aah e eee RES SM 526 Card, Visiting, Relic of Old Custom, Passing 995 Camels and Stagecoac hes Use a in Australia. 197 QUE neers ev enere nner eseseresesevens eco O14 ‘ . Camels Fumigated Before Entering U. S... 257 Card, Window, Useful in E ‘merge ere re 121 195 Camera Aid to Sculptor in Making Busts... 230 Cardboard, Ice Cream Cone Holder Made : Camera Catches Tarpon in Battle for Life... 563 Oe whbescaaevhans avr ddanka SPS ere 166 ay Camera, Clamp Serves as Tripod for Holding 565 Cardiscope Examines Heart While Beating 257 ) 37 Camera, Cee DOOR. COR is sc cdewedeaedsees 640 Carpenters’ Compasses, Improving.......... 957 Camera Finder as Range Finder, Using.... 487 Carpets and Rugs, Weaving VPietures for... 343 _ Camera, How the Motion Picture, Lies..... 878 ‘Carpet, snemoving Re eee 972 : Camera, Huge, for Life Size Photos........ 275 ( Caren © aves Ball Park from F lying Hoofs.. 930 Camera in Air “Shoots” Toward Floor..... 500 ‘arriage, Baby, Turns into Rocker or Crib... 259

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Lu POPULAR MECHANIC Carrion fer Freight Treks wceissccscasckwe 75 Celebration, Swedish, “Aglow with Lights.. 246 Cells, Human and Animal, Cutting under DNS Sis. kraRinbansseleesews oa ones 237 Celluloid as Slide Rule Runner Glass....... 286 Celluloid, How to Mark.............0200060% 623 Cement and Cloth Repair for Radiator...... 620 Cement Blocks Used to Anchor Small Boat id 6 ks ORES SAR DAR RS Ewe Ow OS 1 Cement for Automobile Top Repairs........ 622 Cement for Closing Leaks in Iron Pipe...... 781 Cement, How to Store.......ceececcececeees 621 Cement, Sieves of Bronze Wire used to Test 605 Cement, Tile, Ornamenting................- 638 Cementing Glass to Metal................ 950 Center Drill and Reamer has Inserted Blade 939 Center Lubricant, Tail, Beeswax as......... 126 Ceremonies, Weird, Mark Departure of Lin- ee er SNE bck kde a ss ones wes oe cde rbseun Chain Carved from Matches............+++. 607 Chain Decoration, Rare Russian, Appears in PE BOON scsdcansadcdk cee ovencens bw asee 7 Chain, Long Daisy, Carried by Girls on Col- SOG SD on aces cesrebivsatesessrcases 202 Chains, Auto, In Footrest Save Space...... 330 Chair and Table, Folding, for Campers..... 166 Chair and Table, Folding, Occupy Little Space Mek acet daha bbe bade s ane at neteke 229 Chair Car, Motor Bus, De-Luxe, Built Like. 420 Chair Converted into Bed...............+++ 394 Chair Float, Bather’s, Moved by Paddling. 232 Chair, Folding, for Baby........ccecccocece 599 Chair, High Converted into Swing......... 395 Chair, Invalid, from Rocker Placed on a. ae ne errr ee ee ... 600 a oe te on Wheels Used to Punish PO oc eke tivated + cthy eae hk eee ease ose 562 Chair "hao, Adjustable, Add to Comfort of MY. ctu seek wa ebeee Medes wen nae swede sie 557 Chair, Screened, Foils Insect Pests......... 60 Chair, Vanishing, For Babies, Folds Under- WOE TUS. oan ccd sper aes Geteeresnceucas 582 Chair, Walking, Radio on, Keeps Baby pS SPER teers ee ee rea Te re 351 Chairs, Leather, Seats, Bags, How to Re- NERS Scud a had Giwathnse 6a Ow. Ri kein 473 Chalk, Chemicals and Saw Dust, Scientist Makes Artificial Wood With............. 403 Chalk Marks Wiped With Vacuum Cleaner. 420 Change Giving Machines for London “Tubes” 16 Character Machine Reads Person Using It.. 218 S INDEX, VOLUME XL,

1923. Chariot«in Flames, gend DORE Dicsesdicewsesssicars en uesebenabeke Chart, Computing for Spring Scales........ Charts, Food Determine How Much to Cook Chase Accident, Hunters’, Camera Records. Indian of Me- “Checkers” Human Used in Game on Beaches 3! Cheese, 245 Qualities of Cheese Making, ee ree ater ice Cheese Necessary to a Balanced Ration and Aids oe Egg Incubator € Somaple te Laboratory in Knowledge sential to f ona ‘on BRCPOREOs ciccevcic Cherry Tree, Ancient Held Up by Props.. Chest, Cedar, Renewing Scent of........... Chest Lid Counterweight for Holding ieee | Chicago to Have Elevated Sidewalks..... P Chicken Feed Boxes, Built-In............ Chicken House, Log ‘Bottle Window for. Chickens, 4,000, Uncle Sam Keeping Tab on. Chicks, Hatcher for, Sprouts Oats for Feed. Children at Play “Hobbled” for Safety..... Children Carried to Consolidated Schools in Motor Busses Children, Number of School................- Children, School, X-Raying Heart Action of Child’s Brain Photographed i ae we tate ek lai Chimney Caps, Zinc Makes Durable Chimney Extension Bracing................ Chimney Extension Cap, One Chimney, Shoots Holes in, Che ‘mist, Amateur, Box for LL FBR rrr re res China, Flight Planned by Airplane from De WOE OM vase cccdeneeansscnenecenees Chine Grass pone into Strong Fabric by i. crite whan hahe CA Ke kee eka ete b caeere Chisel Set and Punch........2 2.27 222°¢22%° Christmas Tree Cutting, Washington State Prohibits Chuck, Drill, for Milling Machine.......... Chuck, Interchangeable, for Woodturning. . Church Carving, Salvation Army Doughnuts Church eee ee Church Plates, Mormon, Arouse Interest. Church Steeple 1 Pulled Down by Truck with ne iis riie ae ie We ES oem omc sc desk acloin ao Ad Church Tower Cross, Illuminated Revolving Churches, Syndicating Sermons to, by H. H Windsor Sie CAR cir i i igi te ce iS te Weak dele ah w er og ade ee Chute, Handy, for Unloading Hogs......... Cigar Box Used as Square................4. Cigar Boxes, Musical Instruments from, by Ww. . SRR errr ree eer Cigar Ends Kiil Insects’ and Ashes, Aid Plants ria Shahid aici hm a inca is lak ig ta Cigar Lighter Heats from Hidden Battery. Cigarette Case, Handy, for Motorists....... Cinder Blocks for Building Pressed on Site ween tae Rees ORO HSE doe eek oe bee 4 Cities, Water Power ‘Lights Pe eee Citrus Growers Use Gas to Preserve Fruit. Cty Ancient, Rina Swept, Found in River p City, Bible, Fate ‘of, PRA td oe eee ee D City Buried by Desert Sand Yields Ancient ET helen chika se dbdlek ane einnd smaewe eae City Buried by Volcano Found in Mexico. City Buried in Dry Basin of Oregon Lake City Buried in Jungle ~~ a than Rome... sar >" paemnenenenantetae with Gleaning Min- arets .. ee ee ee a City, Fairy, of Future Forecast at Exhibit. City Lot Farm Pays $2,500 Profit Yearly. City—One Way Streets for Chicago........ City Parks Suggested to Re ‘place Alleyways City, Queer, of Central India SE ee City, Revived, for Visit of King.......... City, Tented, Built for Motion-Pictures.... Civil War Vessel Found By Dredge in River CORMRD TOCte TOP PUM. csc ccccccscccccsces Clamp for Cylinder Grinder................ Clamp for Soft Materials................e.% Clamp for Woodwork Bench.............. Clamp, Improvised Gluing..............00+. Clamp, Lathe Tailstock, Improving......... Clamp Protects Portable Lamp Connections. Clamp, Segmental, Fits Various Hose Sizes Clamp Serves as Tripod for Holding Camera Clamp, Simple and Useful for Stepladder....

Clean Cl ima line! Coi Coi Coi

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61 ao we Go Hho vo “I -1no Geno Wo 00 melee i > wos aon “ ee eee eee eee Conversation, How to Keep Up a, in Moving ED. Wit he oboe oe eee ae eee wwe Conveyor for Lifting Water Un Tneline.. Cooker. Double Bottom, Prevents Food from DP S ctucantebenawe nde dete éxws ‘ Cooker. Cooker on Clean Sand and Pehbles for 2 716

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L2 POPULAR Cooker, Waterless is Safe and Improves NE soles G niutes nu ee eae er is caeten Cooking Lunch With a Blowtore h. eer ee a Cooking Vessels, Bathtubs for.............. Cooler, California, How to Make.......... Cooler, Cooler, Coolies Water, Cheap and Serviceable...... Water Takes Place of Ice in....... Stand as they Row Ancient Craft. Copper and Brass, Oxidising... ccccvseoes Copper, Coloring, Brown and Black..... ae Copper, Matches Used for Money Where, “is ESSE Se Cee ee TT errr eee Copper, Mountain of, Spans Ocean in Deep Sea Cable Copper Copper, 3 BRS Sere rrr eer eee Cr er Copyholder and Line Guide for Type writers. Coral Rock, Soft, Hardens When Used in EE rrr rant ere ey ee eer ee Cord, W. F.: Musical Instruments from Cigar Cork Wades im “200i BRCHE cc cscs cisecrvces Cork, Wood SwRsritute. FOF... ceswsivcsscces Cornice Cleaning Railway on Top of Build- Pipe of Ancient VP Two ‘Tons of, In lumber Found.... Pan for Brewing Lboxes.. ae lait aaa aia aaa miel ae We alas ie tare eet a TS Cornstalks, Fossil Similar to, Mystifies Sci- GUID cccsrercdseessvnescresvescecaecseeve Counterweights, ¢ ‘onc e caled for Cellar Door. Coupling, Compact Flexible..............e-. Cost of Discovering America was Seven ey Be ee ee ore ee eer Cotter-Pin Puller, Long-Range...... re ran Cotton Boll Weevil, Smell to Lure, to Its oa ws ints ntath Gwin ak aie ar ae a oi a sae eMeae Cotton Fields, Geese Weed.......cceccccees Cotton Fields, Pests in, Boost Arsenic Mines Cotton, Fire Makes, Bprout....cccvsvoccser Cotton, Fumigating Plant Built for Hasten- er DOME GEs ks oa dace ce osles vc ceded e siow Cotton, Grafting, to Tree Make Crops os aie) tae we Nl weal eh Cee ee Ae Ee Cale Cotton Shipped by Airplane Worn the Next SE adit waieee wh elbee ons ase ae eee ee eRe Cotton Spinners’ Counter, Egg, on Automatic... Keeps. Laying Bobbin Stop, Hen'’s Back PS ere rer ee rere but Rea Counter, Typewriter Word, Utilizes Space REF rere er eee ieee re ee ee Counterweight for Holding Lid Open ae abe Court Lady, Japanese Woman Artist Paints. Court, Tennis, in Squares to Teach Accuracy Cove r for Flat Top Desk Rolls Out of Sight Cover, Gas Tank, Auto, Cannot be Lost..... Cover, BeOMstOr With GREGOR. 6c ccc cccacvveses Cover, Rubber for Tobacco Pipe...... ae we Covers, Milk Can, Tool Removes........... Cradle of Mankind May Lie _ Desert Beneath Asiatic

raft, Coolies Stand as “they , Row Ancient.. in Attachment on Small Industrial a Pree re (ivektene eek Pee Crane, Floor, Building a. ice Nie hd Sk alee Crane Hook, Rail and ‘Timber, Handles Heavy WOR 5 ois hax anes eran. ee a Crankcase, Funnel ‘for a RS ae Crankcase Oil, Service Station Spe cializes in Crankease Oil, When, Runs Low..... oie whex Crib, Baby, Easily a deer sccwocnen Meee Crim, Baby, tm WinGew CBBO. cv ccc cevecves Crib, Baby, Made from Barrel. ....cccsssacs Crib Guard Teaches Baby to St: ind. Titre ee Criminal Minds, “Soul Searcher’ Gets Truth from SEP PEST eee ORL COT CET eC Te ‘ Cripple Drives Auto without Using Feet... Cripple’s False Arm Steers Auto by Notched Wheel Cropping Blocks, Ee onomizing ere Crops, Grafting Cotton to Tree Makes PST eer ere Peer Cee Crops of Sunshine and Cloud Give United SP INNO cise 4 wikis a ce ea wink i ee Cross, Illuminated, Revolves on Church SOWGE 6400 e0 ks Cross Made of Crutch, Seat on Crutch Tip on ag, OEE LET CL CPE eee Crystal, Tightening the Crystalline Rocks, Mica Cucumbers, Protecting from Cultivate, “Caterpillar” SSN Siac a Sethe asl ots ime ie a A ia aaa ce ate ea Cup, Coffee Measuring, Has Slide Bottom. Cup, Pocket, Folds in Tube Size of F ountain EE pint ns ac AOS ood wade Ree CO ee ke ad Y ins to Represent Jewels... og Sere Hammer Serves as Rubber Beetles. al ich ted Tractors Help, Peat MECHANK ‘Ss

INDEX, VOLUME XL, 1923. Cup, Suction, Holds Ruler Against Black- a ee aa eee avesexvanewetion Cups, Gines, for Stove Lem... ccceccccis ° Cups, Grease, Wrench for Kemoving. at Cure for Sick Roads Sought by Government Cee O. RePOOGe BOM... vad cscs vtwsedabeens Curse, Does, Fall Upon Those Who Touch POET cc convhcn neat a ak 6.0 is Slee el Curtain, Lace, Record-Size, Bigger than City Lot ° pnw pose for Vacuum Tubes ‘ustoms Inspector’s X-Ray amining Huge Customs, Weird,

Mac hine ‘for Icx - Se ee ee : ’ Mark Departure of Liners ee COORG: 5 use ses sede de bsoes 0 eh bs des Cutter, Doughnut, Has Trigger for Ejecting PUN On Witina ie a dice ae shaw a oe eG Cutter, Gear Shaped, Generates Threads... es me a er earn eer oe ee ee eT errr rere ee Cutting and Punching, Holding Belts for... i me ae TS ee eee eee Cycle Race, Airmen Find, Harder than Fly- SED <a ais a) Rats. ese ab ek ee died 2 ae dab adahab Cylinder Grinder, Clamp for...........sce- oe i re ee eee wales Daisy Chain, Long, Carried by Girls on Col- ey IS ore Shia 6 bids ao wrk eee Se eee Dams, Spillways for Miniature............ Dance, Devil, Cures Ills, Island Folk Think Darning, Black and White “Ege” for...... Date, Calendar for Clock Tells, Day and 0 re ret Creer err ere ee Day, Calendar for Clock Tells, Date and ED ihc bts 550 WN ok ter nl ere bea a oe ee wee Deaf and Dumb, “Speak Glove” Enables, to so eae ee ee ee ere ee Deaf, Cane Telephone AidsS............... Death Rate, Increases in, Last Year in Se SURO ia dw nae eek dob ee ote Deaths by Automobile Ine reasing. inosine Decoration, Rare Russian, Appears in New York a rin eee me eae eT eet ee Defects, Eye, Corrected iy Exercising Scal Depot Air-Craft, Floating, in Middle of RPO 6 ins = ee Sele wat ae eo b. es Ow eh O.8AW a Kee Depot has Glass Roof Like Futurist Paint- ee eer ore eee ee eee eee Depot on Wheels Moved by Locomotive.... Derrick, Portable, Has Wide Range of Use Derrick Sheaves, Lubricating.............. Derrick, Simple, for FPArm..cccescicecsess Derrick, Wagon-Box, Easily Made......... Desert, Asiatic, Cradle of Mankind May Lie OROEED. s.vesaedeis Desert, Sahara, haa a by ‘Ae rial Police... Desert, Tented City Built in, for Movies Design, Rafter, for Semimonitor Laying House Desk, Detachable Letter Shelf for.......... Desk Device Tells Return of Occupant..... Desk, Folding Typewriter, Lock for........ Desk, Office, Wastebasket in Desk, Writing, Convertible Devil Dance Cures Il, Devilfish, Woman Money . into Table...... Island Folk Think.. Catches, to Earn Pin Diabetes, Sharks May Furnish Cure for.... Dial, Luminous, Tells Driver When Fuel is Short veh cee ed amon BA OS ve dave ee Dial, Size Finding. Helps Artists and P rint- OEE (ues 6 ed ie at 0 Oe 6 ae as Os hoe hee wie Dial, Variety of Menus Given by Turn of.. Dial Without Mercury Registers Heat..... Dials, Radio, Homemade................... Diamond, Largest, In the World Found in UR. nial eara e'ierw ib. one a acne oie aban x} ote a ates as Diamond Setting Tool Attaches to Diamonds Made from Sugar Diamonds, Searching for..............eeee- Diamonds, World’s Stock of.ic.0..ccccccers Dice Rolling by Airplane Latest Sport..... Dickie, Francis: Kyak to Schooner Dictionary of the Babylonian guage Being Compiled Die for Marking Diesel Engine for Assyrian Lan- Wooden BOKeS... .<csseceos Autos to Increase Mileage Dining Room Cabinet Contains Exterision | ee oe are Pee ae rere a eee se Dining Room on Ocean Liner............--. Dinosaur, Directory, a eT e weer Is Handy Guide..... Skeleton of, Lamp Post, 650

OV Vor Lqu OV ho rol as h \ nes Vit! hes hp: riny pla Hole pla till itech Wo Dog & Don ollh Door, moor O0r, mor, oor, Door, Door, boor oor oor O0Fr, wor jor Door of poor Doug oug oug Ce Doug Ca Dow Draft Drag Wray Dray TAN Dray loread Hi: lorie lorie | rie Drill Bl Dril boril ril ril ril Dril Dril Dril Dril Dril Dril Dril Dro M Dro Dru Dru Dru Cc Dru Dry Due

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114 SY S6

POPULAR MECHANICS INDEX, VOLUME XL, 1923. Streets, Absorbing Excess Oil on...... overed and Explored, Scientist, Strange Vorld 3eneath Surface of Earth, . by ve | RE ee ree eee Ae overing America, Cost of, was Seven | rr a ees aie ase, Plant, Fight Against, Increases Pop SOO. 66sa8s xt wadik hie dve sc oc% ases, Plant, Discover More............. FIOIGEeS RBCK 8 POR snc ccesvivsiccenes h Washing, Soap in Nozzle Spray Aids in hes, Aluminum, Scouring, Soap mixed fe fo OD 7 Rr ae ere hes, Three from One for —teomen Oven.. hpan with Adjustable Legs............. k, Punched, Shows Water Waste from Tiny BE ecccrvavcabdk yen ekeews bead play Card, Vacuum Clip for Window ear eee ere Se Pee oe en eee play Window, Lighting Arrangement for tilling Process Makes Gasoline from Coal ching with Dynamite, by Joe Alexander. ive, Fire’? at Night Thrills Watchers..... jivers Stricken at Work Saved by Air fT On Se en ea ee ne iving Bell, New, Walks on Sea Bottom.... ‘iving Rod” Finds Gold Buried in Sunken SUI vices eneene «caved SN dend ete edd eek be ing Suits for Seeking Treasures of the - Se wneeecorrrrenweet © 2 2 Pers 2 2 2 et oo eo ae a a rock, Work Started on Largest, in the We Ce ik aotcis ce ions Ga a a ele le den She tog BW ie, a ee ee box Skins, Trading, Important Business.... Doll Shows, Mechanic al, Revived in Europe ollhouse, Queen Building Foe Lay oF Re TERE, Door, Automobile, Straps, Improving...... wor Card Useful in Emergency........... Door, Concealed Counterweights for Cellar. DOOR, REI, SAN ca5 ca Wanswies babumnes a DOCG, Tae. Ge Bl ai 6cccdacesueaeh kee s Door, Guard over, Prevents Accidents...... Door, Ingenious Weather Strip for......... Door Bem, BeOwW Gb: TIMER. ois veccnccs ca Wee oor Knob Screws, Locking............ce00% Door Panel Sign Lights as Knob is Turned. Door, BOFOem, Par- teksts cee cvsaaectecsvenes Doors, Garage, Water Pressure Opens. oors on Top and Sides of Wardrobe Trunk. Doors, Sliding Cabinet, Novel Arrangement OE RE Eee ae Ae Sete Re a Fs eee Doorstop Made from Hook.............6.. Dough, Cake, Electric Motor for Mixing. bough Mixer Also Usable for Fruits........ Doughnut Cutter Has Trigger for Ejecting Oe ee eae Doughnuts, Salvation Army in Church CRUE 06k ks we wees OR ARES Aa canes Dowel and Bolt, Combination.............. Drafting Seale and Triangle, Holder for... Drag, Combination Rotary Harrow and..... DRAWER, Zaeeek BOF Fees és ov ses dewveseves Drawine BOGGrG, POTtABIC. 66 siesicescccrecres po ee ee Drawings, Mow to Protect. .acccciscvceses Dreadnaught, Growth of United States Navy Sn SP I ica iat ulin econ, le ee a ee ee OIA Drier, Clothes, Gets Heat from Gas and Fan Drier, Cletnesd. OF TROGIR iio cca cencciaives Drier, Hair, with Six Blowers..........e0s Electric Ferry Run by Motorman.......... Electric Forks, Wires Made to Sing By. Electric Forge, A Portable........... Electric Hammer Has One Moving Part Electric Heat in Furniture Safe and Con- VORGGRE sce cc cc ewerbstedecconseesevees Electric He: iter Suspended from Light Sox ket Electric House of Future to Banish Drude- ee es ee ee Electric Iron Coil Used in Ignition System Electric Lamp Kills Insect VPests.... Electric Base Electric agara Electric Electric Manufacture of Electric tach Electric Electric Light COMMCCTIONS Ob x cc ccavscase Lamps, Bayonet Socket, Changing Lamps, Submerged, to Light Up Ni- WO ahs db 4504586 +e bhvwa tee os Lantern Has Serviceable Fe atures. Light Bulb, Millions Employed in Light Guard, Portable, Easy to At- ‘Light Plug with Reel of Wire..... Light Socket Has Six Changes of 13 117 198 165 358 o4 237 599 905 55 99 694

Page 14

14 POPULAR Electric Lights Concealed in Artificial Flow- MECHANICS INDEX, Dl He ibeeks ak vnrabe et kane es «ewes alee bueaee 927 Electric Lights for Christmas Tree, Clamp i iisacaw ReaKes code oh bo wae oea.eww se 557 Electric Lights, Growth of Plants Increased OE RE Ee ee ee reer ee 763 Electric Lights on Map Show City’s Growth. 257 Electric Lines, Kadio Helps Find Breaks in 73 Electric Machine, Man An, Theory of Doctor 592 Electric Machines, Blind ‘taught to Fix ES ee 370 SEO BOG TORT ba sei as eveg ss se 8unnbsnee 770 Electric Mine Locomotive, Safe Type, Prize I RR SN Sr ee neh: Se ee 325 Electric Motor Attached to Wire Brush Wheel for Cleaning Flat Surfaces........ 766 Electric Motor tor Mixing Cake Dough..... 582 Electric Pen Writes in Gold or Silver...... 10 Electric Railway, Birthday of, korty Years PE cer pekeis+ Cake Kad Oh hee Oe Re eA eS 219 re Railway, Peaks of Spain Conquered 557 ON a Git ies AG Male SR a RI wae By kc oe ch ot ke Electric Railway Solves Space Problem..... 564 Electric Scraper for Ships Cleans Rust and DE: sd ic wie tee eed SaaS Ome ane tae 625 Electric Steel Furnaces ef High Efficiency... 776 Electric Stoker, Fire Fed, Puts Ashes in Can 820 Electric Stove Cuts Off Heat When Food is RSA eR Ane Pee 173 Electric Unit, Energy for Many Tasks Sup- ee JD ic ethdneebeenc then bec -. 654 Electric, War kLngine of Future to be....... 757 Electric Whipper, Homemade......... ese 317 Electrical Appliances for Housewives Save oy SS rare CS 239 Electrical Test Leads, Convenient Arrange- AE BOE 4nccesicinveese +iess +c ~. 623 Electrically Driven Hedge Trimmer, ‘An. 635 Electrically Lighted Wind Indicator for ee ae”. eee ree 655 Electricity, Amount of, Used for Industrial rere. aa 169 Electricity, Anti-Aircraft Guns Fired by. 756 Electricity for Campers from Portable Plant 277 Electricity from Windmill Takes Place of SO FS: —CtCté‘(<‘ See 833 Electricity, Line Guide. ‘and Copyholder for TYPOWFiters, RU Weis cscs cccccscccccvccs 820 Se Lions Tamed by, Instead of avs Pr ere are Electricity Made by Water Power.......... 848 Electricity, Million Volts of, Modern Jove ER ee ee eer re eee 104 Electricity, Tempering Saw Teeth with..... 256 Electricity to Aid in War Against — See re rr ee nreeee f 538 Electrification Brings New E ra to Austria... 772 Electrostatic Machine Allays Veterans’ Ills. 11 Elephant Tusks, Record Size, from Dark rer a ea ms PEE, 277 geese, Train, in Barn Is Automatic SN | Si i.ce 3 O54 Re eae a ees we eee a ace! eae 50 Elm, Washinaton is Pee eee 391 Emery Wheels, Testing Steel on. tr Pere 978 Emotions Tested by Machine and Accurately SN: ea xedwhewes wht s nthe we ache ones 41 Empires, Ancient, of ‘Bronze Overthrown by PT rea eae es | ree 654 Enamel, Resdscns Added to, Makes it Easier to A »ply SS ee Sra eee 782 Enameled Ware Repaired by Brazing...... 304 Engine, Auto, Air Scrubber Bars Dust “pe 498 Engine, Auto or. to Increase Mileage. 336 Engine, Auto, Liffing Bar for.............. 781 Engine, Auto, Operates Floodgates........ 274 Engine, Automobile, Replacing an.......... 652 Engine Carried on Trucks as Track is Too DE Wives ene cauMnebien eke dade s eae awn’ 515 Engine, Electric, Burns Ashes for its Motive ng Oe ee PP re Pe Pr eer re 853 Engine, Farm, Made More Convenient...... 303 Engine, Fire, Giant, Feeds Many Pipe Lines 694 Engine, Heating Radiator Cools............ 963 PEREIMG BEIGRCIMES, CUPIDE osc ccccescnencapeccc 289 Engine, New Diesel, Features Sliding Cylin- De. ti catvcneatenel «snendeskabawene 44 286 Engine Primer, Gas, Starts Electrically.... 124 Engine, Sugar Alcohol Runs, on Hawaiian PRE sc xcaccdbawieva rovhseekies comes 586 Engineer, Junior, for Branch of Geological Survey, Government Seeks............... 653 Engineering Marvel, Gear Without Cogs ae ae rrr ree 413 Engineers’ Problems, Pencillike Scale Solves 441 Engines, War, of Future to be Electric..... 757 VOLUME XL, 1923. Entrance, Rustic, Lends Beauty to Factory CSTOUMED co rccccsscceccesvescecee Entrances, Rustic Stone, for New Subdivi- CN. Sh bwkeern dads ae hee seks sawed we wanes Envelope, CRO Gard ew cus 408 Kee Ob bia cect eb oe awe as Envelope Sealer and Permit Printer........ R Envelope Sealer Has Water in Handle...... 736 Envelope Sealer, Self-Adjusting............ 105 Ienvelopes X-Rayed to Find Missing Checks 2 Erosion of Streams, How to Prevent........ 165 Eskimo Boat—Kyak to Schooner, by Francis EER csi acbsseeteecneneesene sae eas bana 61 Eskimo Dogs Travel Forty Miles a Day..... 768 Biching Glass, by J. BS. Hagan. ...vcccecsccves 452 Exerciser, Rolling Barrel in Frame a Good, 515 Exercising Scale to Help Correct Eye De- DE, cb aes 6k aoe 8 Wh hele 6 sch cetigaee dae es 340 Exhibit, Fairy City of Future Forecast at.. 437 Exhibit, Gems Collected for Priceless, for Py Cn once vee erdnaresrsaees saeeuqenee 33 Exhibit, Stamp, in London................. 442 Exhibition, Swedish, Aglow with Lights.... 246 Explosions to Aid Earthquake Study....... 221 Explorers Visit Vanishing Race of Indians.. 437 Explores, Scientist, Worid Beneath Surface of Earth by Jaques Boyer...........6..6. 346 Exposition, Swedish, Aglow with Lights... 257 Exposure, Time, with Hand Camera........ D37 Express, Airplane, to Fly Day and Night... 244 Eye Defects Corrected by Exercising Scale. 340 Eye Shades Snap on Glasses...........e06. 570 Eyeglasses, Paper for Cleaning, Kept in PE sop0000s 5 4OUSRbSO OE) eee dte ss een 660 _ Experts Studying Ways to Prevent Diueks RUS DERAS ORE ee ba dG we Raa ue 654 Eyes, “Keg,” Prize Offered for Preventive Se ckce eth negekens £S000 On ees acing e's 8s on 326 Eyes, Scrence Rivals in Making, by A. N. Perr reer tore roe 416 Eye's Sensitiveness to Light, Electric Cell DUR shah orvssd cena tecadeeoeonayn cee ene 5R2 Eyestrain, Color Scheme Relieves, and Af- eee GN, 0 ba de ckaseerinceeseaciont cee s 79 Fabric, Strong, Chine Grass Made into, by | PP PeeeTUTTPTErTrrer UU TTI erry ey re 194 Faceplate, Holding, Lathe, Securely........ 796 Faces, Girls’, “Done Over” So They Look PEE. cichedeesadgkandetnas bsad oe 004666 6% 195 Factories, Safeguarding Workers in. 750 —o Grounds, Rustic Arch Lends Beauty Facts TE, GOES. bc 6.9 F868 ore sercdées sna’ 654 7 Flower, and Golden Bird Appear at vs “Family Tree” Hair Kept for Generations DD ccenabenseenes +00 d.68 6 ene eds eae a eere 444 Fan, Auto, oes bk drs eae ee we he eke 166 Fan Belt Coupling for Spring............ 972 Fan Belt, Slipping Auto, Remedy for....... 134 Fan Belt Tension, Dash Control for......... 323 Fan, Clothes Drier Gets Heat from Gas and 756 Fan. Electric, ae eng 3 fe err eee 813 Fan, Folding Ceiling, Part of Lighting Fix- CFS ccc cc pe cree sesoecizevorwssereveseseeee 514 Fan, Huge, One-Man Fish Net Spreads Like 441 Fare Box Prints Transfer and —ageaate 431 CO ccdends Sunwise heshdy see 20s senebivee 2 Farm City Lot Pays $2,500 Profit Yearly.. 524 Farm Kitchen, Fresh Water for............ 815 Farm Population Decreasing ..........+.++. 110 Farmer, Reports of Market for...........-- 575 Farmers, 69,000,000, in China...........406. 770 Farming Methods, Ancient, Used in Indo- = EE. ca tedcade eahhed 6d esENT 2d Ce RE CHD ESS 253 Farms, Fur, in Canada 1,000.........+0++655 920 Fasteners, Metal, for Mailing Tubes.. ....- 60 Fasteners, Package .........eseeee0-: isstew SOs Faucet, Device for Governing Flow of..... 324 Fear—Electricity, Million Volts of, Modern JOVO TUBBICS ccccccccccecseseccccscesece 104 Feed Boxes, Built-In, for Poultry.......... 144 on Fowls Reach, Through Slots in Pack- ae ee ee ee ee ee ‘ 4 Hatcher ‘for Chicks Sprouts Oats for. 562 Feed Mixer for Hogs.......--scccsccsccccce 304 Feeder, Poultry, and Rat Trap............. 639 Feeder, Wringer, Cuts Risk of Crushed Fin- DOE. 5 cc0cs Seen eh Eaeha Dab eee ORs WHR ESR « 598 Feet, Airplane Propelled by.............++. 586 Feet, Nonslip, for Tripod.....ccccescesceses 48 Fence Gate, Wire, Tightener for............ 142 Fence, Ice Block, for Hockey Field......... 964 Fence Posts, Concrete, Attaching Wire to... 300 Fence Straightener, Wire, A Good.......... 631

- r Fever _ —_ ~ ~ bert bet bt bt - = a ~_“—— == ~~ = o V Fis Fis Fis

Page 15

POPULAR MECHANICS noe Berets, Wr its 6 i eerie aSvennecseuwe 969 nce Wire Stretcher, Novel........ cece. 616 ee i ye a er mee 487 tender, Auto Lights Under, Remove Glare... 403 nder, Folding Auto, Scoops Up Victim... 166 enders on Automobile Add Beauty to Car 329 rrOeyeee Benes MOG 66 iid 6d 9c ees eees 621 rry, Electric, Run by Motorman.......... 857 iertilizer, Molasses Used aS8.......ccc-eeeee. 586 Fertilizer, Oyster Shells Used as........... 423 Fever Thermometer, Electrical, for Grain CLOUGS tinceeée eee Wek een cbeeeReecerned 219 Tibor. Fee oa she 64h e sie bee ee beens siane 953 Fie Groves, Hawaiian, Sown from Army PIG, secceC ERAS Ka CADP ROWED EHO07CEREOS 38 Fig Shipments, Papier Maché Replaces Ice [9 DORE Kicks kew ene nbawnae weaken ewe’ wa 686 Fiftieth Anniversary, Typewriter Romance ReORe e080 hobs obs dab ew sansa ew eeue 327 File, Grooving, for Golf Clubs.............. 162 File, Soldering a Broken...........ceeeeee0% 813 Vili COPOMGE BOs iin kick wd vswiesdvwes 456 Film, Movie, Gauges Accuracy of Observa- CIO ccbvacdaees dus Cea aioe obb 26s ov 180' ches 113 Films, Cut, Using in Plate Holder.......... 161 Films, en Picture, Paper End Danger OF POS oa tet in cd cicaweees teeeel sede cadens 337 Filter, Light, "Gold, Motion Pictures Made GOES WE. 6 csv bcc cbse ocrvseedsudesdscanes « 377 Pitted, eee: FOO 6s ce kas vittcnnsdasawaen 813 Fire Alarm Systems of Manhattan Island, N. Y., have 17,000 Miles of Wire........ 12 Fire, 1906, San Francisco Burns Schooner to ComemOMOTAte ...ccccceatessccuéweseas 49 Fire, Danger of, Paper Motion Pictures End 337 “Fire Dive” at Night Thrills Watchers. 21 Fire Engine, Giant, Feeds Many Pipe Lines 594 Fire Fed by Electric Stoker that Puts Ashes >) ary ere ees ee ee 820 Fire Fighter Run b Gas Pree 937 Fire Fighters, Airplane, Soar Over Forests 198 Fire Fighters Protected by Sheet of Water.. 28 Fire Fighting on the Right-of-Way........ 265 Fire Fighting Pump for Automobile........ 245 Fire, Fighting, with Steam Saves Oil Wells 517 Fire, Forest, Special Apparatus Films...... 109 Fire’ Insurance Companies, Aerial Photog- ee ee ee eee ae 37 Fire Ladder Folds into Pole, Serves as Bat- 0G SE ac keke kccen dawns sd cetneeese ys 493 Fire Makes Cotton Sprout...............00. 375 Fire Razes Son of Heaven’s Palaces........ 575 Fire Test Turns Office into Oven........... 63 Fire Victims to Slide Through Silk Tube.. 601 Fire, Well, Rifle as Saw, Smokestack is pe iegeeagarc0 be. ae 825 Firemen, Jap, Add Gas a to Aid in Life Saving TPT Cer eee ee ee Eee oe Ce oe ee 898 Firemen, Shield of Water G uards, from WUE city cau ibis aut kmseemedranc.. oc) 708 rie Shoot Water Through Loops in REESE Sea ee aie aR ae ee Fireproof RES Renee a peiee: $30 Pape OE oi. ckos cea'bau thie haem dc ec 815 Fires, Forest, Sparks Caught in Water Pre- er gE ng Ry pig 423 Fires, One Man Pump Used to Fight Forest 843 Fish as Pets, Trained to Follow Owner oe Ue PEAR ee ea ae 675 Fish Board ‘Swimming Latest Water Sport.. 229 Fish—Devilfish, Woman Catches, to Earn : So EE dee hed ss oat na he adae es eew ne ke Fish Eggs Shipped ‘in Ice, Hatched in Tubes 830 Fish—Four Lake Trout _ Scale at 200 PE Rik s SAric daa ne dene para Wink ood oie s bce 5 902 Fish—Goldfish, Swarms. of, " Netted ‘by Lake Erie Fishermen ie time a eae ib ah eG alk aeons ee 119 ee | Splitting and Dressing Ma- eerie ere eee te ee eee 9 Fish, How Long Do, | ee eee 743 Fish Metal with a Rudder Made to Thrill PE Ah d'6 Wah bela ac kta Se baw w Mic aie 6 5 849 Fish, eMillions of Flies Made to Tempt...... 38 Fish, Mirror an Effective Lure for......... 488 Fish = Frames, Africans Make, to Save Wedd s 60 .o ake haw seemed ese ob hs cake bo 686 Fish Net, One- Man, Spreads Like Huge Fan 441 + Propagation Boat Circulates Fresh LcieehR ehh dee ik ek aeee et ead desecirs 85 Fish, ‘Sea Lions Slain to Protect........... 389 Fish Serve as Coins in Labrador............ 889 Fish—Sharks May Furnish Cure for Dia- EE: Sichitdes Ge wks sno sku Os 6 Wine His 0's Gas des 75 Fish, Stri ed, in Coral Bed at Papua........ 185 Fish, Stuffed, Painted So They Appear Real 399 INDEX, VOLUME XL, 1923. Fish PB sdenicsies with Buttons for Identifica- REL GS ARNG Se OS 45s RRR R RS nba vnedaehkhene Fish "Used Re eee ee Fish—Whale, Ravages of, Cause Plea for ET Ma ve eRe a0 WESC Ode a RS Folds W 6 aK 08 ems Were Pules, THOMEG «oc wcciwicacascccce Fishermen Use Boots Made by Shark Hide.. Fishes, Bugs Drawn to Bright Lights Be- ee Se eer eee eee “Fishes” Human, Angling for, is Popular SS sectccreerenendeseenocounaeeergeneae Fishes Swim in Glass Tube Joining Bowls 5 Fishhook Hung from Kite to Catch Giant Tuna Fishhook, Spoon, How to Make............. Fishing Boat, Improvements for a......... Fishing Boat—Kyak to Schooner, by cis Dickie Fishing Boat, Yardstick for Fishing Boats, Airplanes with Radio Guide, to Prey Fishing Beats in Harbor of Para, ee ee Brazil. Fishing in Center of Swift River.......... Fishing Rod Joint, New, Makes Rod Flexible Fishing Rod, Method of Repairing......... First-Aid Kit, Red Cross, Built Like Knap- DE ce cbees basses ebbsetSbsnescdecr ace anne Fixture, Lighting, Folding Ceiling Fan TOE Soa clea thie ahs aie ae eae tee eee w ace ie ee Flag, American, Too Long...............+.- viene Glory” Too Pa Its Size is EEE nv¢cccdwene dea chee ade eens eae eine a Guts Through Steel Two Inches a PTT TT Te CTT errr ee Flame, Hottest Known to Aid Study of PENS ncewcds cde en so bcnscarteraeesvoes Flame Thrower to Fight Grasshoppers..... vious Beacons to Guide Flight of Air Flashlight for Screwdriver .............5555 Pinenent. Fountain Pen Has, for Writing ESR RS RS EARS he ee Flashlicht, “Water Poured into, Starts Bat- tery Action Flasks, Heat Imprisoned in..............+.. Flatiron Coil Used in Ignition System...... Flatiron, Gasoline, Used as Camp Stove..... Flies, Millions of, Made to Tempt Fishes... Float, Bathers’ Chair, Moved by Paddling. wieet. Pail, Prevents Calf Drinking Too BSE cceccccvesesdé Floating ‘Nut and Washer for Arbors. Floodgates, Auto Engine Used to Oper: ite. eg Forty Mile River Dammed to Pre- Floods, Rare Snowfalls in Holy City Bring soo coe eee ake a bake e oe ees oes Saening | Machine Works Close to RRS ire ee rer re Floor Paint, A Durabie Sil sal tis alles sce th Wk Na la Floors, Mining Gold from Dust on......... Floors, Repairing Concrete Dancing........ Flower Basket, Leakproof .............55. Flower Boxes, How to Make.............. oe : Change of Hydrangea Bloom olved ..... Flower Fairies and Golden Bird Appear at OS Sa aera tT te eee rere) Tee Flower, The More Brilliant the Less Fra- Brant PerfuUMe ...ccccccccccccscccscscceses Flowerpot Weeding Tool .........5-.55005- viewers. Artificial with Concealed Electric PPP rere reerTeerereri rrr eer eee Flowers—Aster Seedlings Die, Why........ Flowers—Daisies, Long Chain of, Carried by Girls on College Campus.........-..-46. Flowers, Huge Anchor of, Dipped as Tribute SS St Chiseess aeheewieeshaeseres eg eas Flowers—Hyacinth’'s “Eaten by Boat TuPmed IMtO POPS... ccccccccsscssevcsseses Flowers Made of Glass..........ee eee eeeees Fly Exit on Screen Door...........64.55555 Fly Moves Pig’s Ears in Trying to Escape Flying Fur Bearing Animal Found......... Foal, Horse Protects, in Stall............... Focus an Soft, Produced with Small CEE casevecaesarecasveseceaveversecee Fog Bells “for Lighthouses Controlled by OR cc cee ews cds evOeeine ob es Sees enean Fog Forces Pilot to Take Voyage to Europe Folding, Boltless, Stove for C ampers....... Folding Chair Cannot Tip, Has Cushion Seat Folding Top on a Motor Bus...........5.6. How Much to Cook . , Perey SS See Food Charts Determine Food Products, Cattails Food, Seaweed Is Made

Page 16

16 POPULAR MECHANICS Food Trees, Crop of Future, Predicted..... Foot Power for Pumping Water Used in SY Mkt amsiia + ca XA eum asdaas Woenk eke Footcutfs for Horses l’revents Them from a NN ore ora cays wale tac Wink. wie Ford, John Anson: Monorail Taps Wealth of Death Valley. Forest Fire Fighters Work from Airplane. Forest Fire Fighting on the Right-of- Way. Forest Fire, Special Apparatus Films...... Forest Fires, One Man Pump Used to Fight Forest Fires, Prevent, Sparks Caught in a a te i ie Poe Forest Land, 7,000,000 Acres of, Burned Se re ee Carer Fee pte Forest Moths, Balloon Motor Ship to Fight Forest of Fossil Trees Million Years Old.. Forest, Passing of Lumberjack Reeall EERE SRR See Sete Aa ei Forest, Petrified, Million Years Old, Found Forest—World’s Oldest Thing Saved by NII ks aie aca Sa wend & &d- 0 KDE eww ee Forests, Logging Elephants for Canadian. Forests Turned into Stamps....... rorge, Electric, A Portable. .....::.6s¢s«es Forgeries, Fortune in Stamps Proved by EE Se RS OE rg ee agers wae Forks, Electric, Wires Made to Sing By.... weemee., Comereta, CHORD. «. jagtakiie nmin ae ae eigen i A Ser we al we Stove and Ice Box Built in Kitchen....... Stove, Tiny Heated with Alcohol......... Writing Desk Convertible Furring Staples, Wire, for into Table.. Stucco Work.

PUPTOWS, Ware LAMOG ss os cc cciivescussnascs Furs, Wrapping the World in, by T. Win- es SP ere ere re 67, 213 Fuses, Lamps Indicate Blown.............. Gallery, Rogues, Insect Pests, Kept by Gov- GEUORS TOE Te bose seen wns xe anede Game, American National, Mexico Encour- SE UE FI wn bk case as bbe see banka sree Game, Hunting Million Year Old........... Games: Base Ball, Mexico Encourages Adoption OE coe eeeeeeeeeeeseeseesseeereeseseeesese “Bug Ball,” Water, Played with Round NS INO a era ie os ua wee eer ae le a Care <fame Beoter BOG nce iiick sec caweas dee “Checkers,” Human, Used in Game on SEE SG Search aes ba De baa ee Re Ferris Wheels Popular in Nile Valley.... Golf, Obstacle, Has Thrills of Real Game Ma Chang—Chinese Gift to America..... Rotting Dice by Aicplane.....cccccccucsees Gang Drill, Straight Line, Speeds Up Pro- NNR: Vo ded a ola cele Gime aid hk Oe Ak we 8 Garage, A High Pressure Grease Machine rats i a ukne ea A aE Ee Raw ee elec ae Garage, Concrete Washbowl for............ Ceres SIGGe GORSON ce 6 bac ec cece siseirseess OPES BOGE, BOO TOP. oc cc ots 6 odes 2028s Garage Doors, Water Pressure Opens...... Garage Has Sliding Shelf for Storing Auto- EE SEER ee Cee Te eee Garage, Reboring Fixture for, by J. V. Ree reer re ere er re ne Garage, Tire Repairs in the Home, by Lowel i ae cree eee 641, 803, with Sliding Doors Part of Home... Gate and Winding Stairs Lead Up to Garage Garden, Garden, Japanese, on New York Hotel Roof Garden Row Marker, Lazy Tong.......... Gardens, Rain Machines for............s+6. Gas, Boat Built of Junk Moved by........ Gas Bombs, Deadly, Sought for Airplane BEE iv cctn 6 26b6055.6 Veb+ES Seat Ase O* Without Motor.. Preserve Fruit Burning, to Make Ice Citrus Growers Use, to Gas, Gas, Gas, Clock Stops Waste of, Prevents Explo- PE gaa 6 RSW owe ES 6 Os Uw ne OE 8O 0.6 0 Oe SO Gas, Clothes Drier Gets Heat from, and PO vst et ede tsnsmeunsds weerls cende head oe Gas, Created by, Man-Made Northern Lights Gas, Deadly Carbon Monoxide, from Gas ee SESE ET err rer Cer ot oer) ren Gas, Deadly War, Now Cures Sick.........- Gas, Exhaust, Stove for Tourist............ Gas for Killing Earthworms.............. , Gas Heater as Stove, Using a........... oes Gas, Helium, Cold Greater Than Arctic’s Turns Out Gas, Liquefied Natural, Gas Mask, “ Purpose, Lets Gas Masks, Jap Firemen Add, “Natural, Shipped in Tanks... earer Talk to ‘Aid in Life PP eck d bathe Cabiekis scenes gee name Gas Motor Runs Fire Fighter ST ey rie Gas “Ore,” Mining the Air for, Profitable ee PEER EEO CRE SECT Te CECE TTL Gas Production in United States........... Gas Tank Cap, Emergency.........+.+++e+- Gas Tank Cover, Auto, Cannot Be Lost.....

$25 951

Page 17

POPULAR MECHANICS INDEX, VOLUME XL, 1923. Moved with Hand Jacks Tank eink Improvement on 8 Tanks, Heavy, Carried on Two Wheeled Poison, Made in Trac tor Exhaust, to Kill Rodent Pests. as Valve Avoids De ath and Fire Danger. is Vietims Saved by Respirator Mask as Well Heats Swimming Pool Ww ater Consumption, T hree Minutes Train Designed to ‘Steam Lecomotives > Obtained from C oal. (ie asoline fein Gauge, Luminous Tip for. into Auto Under High Gate and Winding Stairs Lead Up to Garden » Latch, Secure Tightener, Wire Fence ..... Gat ‘post, Saving the snes for Lathe .... Gi auge for Cc lipping Hedges... * Tank, Luminous Tip for. Handy: for Machinists. ‘ _ Mic romete r Attac spenenetg for. Micrometer Snap, Aids eae. Tells’ Amount ade? Alcohol Gives W arning of w eakened for Machinists. , Attachment for Plates........ ic to Replace Clutch in Autos 8: , Giant Reduction, U J Javy Tool ele wa Shaped Cutter Generates , Cutting, on Shaper.........-++. ‘ Gear without Cogs Hailed as ean ated Killed for Pillows..... Sam for Priceless , Thousands of, Gems Collected for Uncle WEE TESOCCCEIGIET 66 o eens dsdudosesscnccvass World’s Largest Geological Survey, Engineer for Branch of y, Animated Movies for § N. Hollingsworth ;s, Kitchen Run for Metals Affected by Acids Geyser to be Named “President Harding” Icelanders Obtain Government Seeks. wane Rake kee Rae Rig hig il ade aid OTSA. SA ere Girders, “Mammoth, Shipped on Four Cars. Giant and Midget ee Pre ee ee tects ' sae . ae aun say Perr e Te eT Tee CLE TLE ; Cut on Two Sides to Reduce Waste. vi ; Cutting Machine Cuts on Both Sides.. OO de tow wo-i1n9 ou +00 Mobo Iron Weights Cannot Glass for Tele roe > Signal Flowers Poe Gixs. Signal Pe , Inch, Made from hae he hls ee ass ighi ‘ poreeees se et ‘Strong as Con- United States Glass Roof on Depot Like Futurist Painting ¢ Glass, Sand Needed for, Mined with Water. Glass, Stained Medallion, Work of Students Glass to Metal, Cementing eerrrrrrrr. eesee Glass Tube, Fishes Swim in, Joining Bowls 5 Glass Tubes, Fish Eggs Hatched in Coe: Re. Cc. cna nbees ko beesnad Glass, Unbreakable, Resists Heat and Acids oy RO” Glasses, Eye Shades Snap on............... Gliders, Upward Currents of Air Help...... Globe, Gigantie, for srecerreiaae Light Inten- sity 5S SG Oths Cw eith mee esinn © § Obes 6 00084 6000 Globe, Mirrored. Reflects Use of Ice Plant.. Globe of Earth Cut from Solid Rock........ Globe, Toy Ducks Sealed in, Half Filled with MP cs crantnas Deer erhen bre we ade eae bes Gloves, Swimming, With Webs L ike ‘Due k's 7 Gloves, Wooden to. Protect Hands from Co) ESS Pee en eee or ee Glue Pot Heater, os ok 08 08's 502% 08% Giue, W aterproof, How +4 SN sik Wy st ne wie Glue, Water Resisting, Patent of, Given to Peop Se. ta hah iad aia ds Gen ea ane Sie tee ee wie Gluing Clamp, Se eee Goats, 10,000, Boy Scouts Round Up, by Everett W. RPGR. a5 cnc st cacnedenresds Goggles, Glass for, Iron Weights Cannot EL 42640 A6 4d OS d64 OOK CO HEE EE OS OO ES Oo Gold and Gems Used in Japanese Shrine.... Gold and Silver in Kegs and Bricks Bound ka eet ee eee eee ee Gold, Billions Oe RR eo Gold Light Filter, Motion Pictures Made ee a ea een ee err Gold Lures Adventurers Toward Arctic.... Gold, Mining, from Dust on Floors......... Gold of the Sea, Ambergris, May Have rrr re rere Gold, Old, Mines Reope Beech wk cna a eens Gold Plated, Royal Coach is.............. Gold Rail from Spot Where President (ED: a. can e's dco keke bee b eee ees Gold, Recovering, Buried in Sunken Ship.... Gold, Roses Made of, in Colors of Nature.... Clone TORR, Feete OMe cn cccc es acenvtnsecescs Gold Washed from Rock by Rotary Ore Mill Goldfish, Swarms, Netted by Lake Erie Fish- are eet ce ree Goldplated Work, Satin Finish for......... Golf, “Aerial” Adaption of, Made Début in OFA ce SES ELA ee Pee Golf—Airplanes Drop Balls on Green NN as ew GD Se ww ace OH: mene eed alae & Golf ‘Bag Pockets, Locked, for As wcwile ene ane keen ka OE oO bokeh Golf Bags, Mule as Caddie Carries......... Golf Balls in Millions Used in United States Golf Balls, Process for, Guarded as Secret. — Club, Many Purpose, to Suit All er Golf. Club Weight, Change, to Suit Plaver.. Golf Clubs, Grooving File for......... akawa Golf ares, Indoor, Felt, Teaches How to Pn aedidhs ane nakies dane a weak box Kie'Gs Golf Course, Sand Stand for, Portable...... Golf, Obstacle, Has Thrills of Real Game... Golf Scorer, Pocket, Keeps Tab on Two oo, SESS Ne eee Ger Tees, Weed Pima fF. .ciccccicccvcaeca Golfers, X-Ray Shows Why, Miss Hole in PT Ad cah's Robins Kad bead Oe whe eb eae ode e Government Gives Patent to People....... Government Keeps Insect Pests Gallery for EERE AR eet ren Catia Government Seeks Cure for Sick Roads..... Government to Pay Radio Men $5,000 a RE. Siweaseeadknd diac ce Cee bea cme awe Grade Dial and Compass for Autos......... CGOPAMERIOG, TEGGROMIBES 4c 66k civiccvccieeda Grain Elevator in Barn Is Automatic Feeder Grain Fever in Storage Told by Electricity Grant and Lincoln Busts Put in Hall of PE. Ntdhed then dwintd Se Wah eh whweikes weed & Grape Crop, Auto Tires Burned to Save Grapes Protected by Bags...........cccccce Graphite Discovered in Siberia ............ Graphite Seams Discovered in Yenisei...... Grass Bag, Skirt, Old, Used as.......c.cccee Grass, Chine, Made into Strong Fabrice by Germs | Piay- G rass a New England Coast Sea “Crop”. TLS cet te eee oe Grass Fibers, Raincoats Made of..

Page 18

is POPULAR MECHANICS INDEX, VOLUME XL, 1923. Grasshopper, Flame Thrower to Fight..... Grasshopper ‘Trap Hauled by Mule Over PRE 4s. OCGRERD RDS hOwe OREO eG ene he SG ae Grater, Potato, Also SHcesS....cccccccccees ‘ Grater, Two-Sided, with Straight Prongs... Gravity, Ray to Overcome, Is Sought...... Grease Cups, Wrench for Removing........ Grease Machine, A High Pressure........... Green, Howard: Rotary Blower Made from Tin Can...... Grinder, Cylinder, Clamp for.............6.. Grinder, Foot Power, for Small Shop........ =e errr Grinder, Tool, Homemade Horizontal....... Grinders, Small, Increasing Usefulness of.. Grip tor Armless Persons Turns Pages of BOG, 66 kee 00826 tbs 266 eeresieeeeecon eee Groove in Bench P revents. Parts from Roll- Se ME hiwinc weet ae se bee aba e eed 6 eae sew ee Groove, Planing ‘Deep Sree eer ere er ee ra Grooves in Frying | Improve Cooking. Grooving File for Golf Cluws.............. Guard, Aerial Police, Peace on Sahara..... Guard, Bather’s Hair mage Dry by, Under re Ca Quara. “Collapsible Window, Locks in Place. er ee ed Guard, Concrete Cattle, Can’t Burn or Bend Guard, Crib, Teaches Baby to Stand...... od Guard for Mangle Rolls.............. oa eine Guard over Door Prevents Accidents...... Guard, Portable Light, Easy to Attach... CORNG, TPHERIOE, Bo otc tce cect icy etewescwes Guards, Ceaseless Vigil of Coast........... Guards, Nonscuff Heel, for Feminine Auto PEL ia wk pines RON ECCS bs awe eEw ens oak bue Guessing Contest.............. 439, 603, 767, Guide for Lettering Pen...... eee wens Guide, Line, and Copyholder for Ty pewriters Guide, Simple for Tapping Round Work. Guides, Alpine, Heroism Of..........e-ese0- Gulf of Mexico, Great Lakes to, Waterway ee eee Pre ere Sr ee eee Gum Turned into Rubber in Thirty ge Gummed Tape from Unrolling, Preventing. Ger, BiMe basanecedabdeaes Hair, Human, Made into Cloth, Resists SOO. DROINO § occoscnccanesscccanenes Hair Kept for Generations Makes a “Fam- St SE vn de ees be OR RES eRe a eae eee ee Hair Nets Handmake, Too Fine for Machine Haircloth Thing of Naantonan pape RCRD pe Ta Hairdressing, Science in, Is Aid to Women — Crinkle, Stays Put and Cannot - . SET CULCTT CULE TTT CLT eocccece Halftones, Newspaper, Copying — of Fame, Lincoln and Grant Busts Put er Pe Hall of Fame ‘Wipes “Out “Sex Distinctions. Hammer, Air, for Breaking Concrete....... ag oe Crutch Tip On, Serves as Rubber a Hammer, Electric, Has ‘One Moving Part.. Hammer Handle, Hollow, Holds Sec rewdriv- ers Hammer, Tack, and Journal Hook, Car In- PENOED. c.0cbbcdescine seed ccxdacdusewwcgn Ce ee 572 925 118 355 444 913 9 202 302 260 2 533 925 455 Hand Car, Building a Four Passenger, by Geo, A, ‘Luers or LeeLee Terre eee Hand Car, Carrying a Rail on.............. Hand, Finger Moistener in Palm of Hand, Ore Stamped by, in African ness eeeesess Wilder- re a eee eee Handrail — Porch Steps. Hands, Spirit, and Rubber “Gioves ery ee Hands, Ten Tons, Built for Scene in Movies Hangar, Airship, Could House Large — Building es Hanger, Coat, and Brush Combined........ Hanger, Folding, for Clothes.......... saan Hanger for Oars, A Simple................ “ Hanger for Portable Lamp.......... Teer Hanger, Handy Hog .......cccccescsece inves Hangers, Pipe Line, Tightening Terr rere Hanging Basket, Leakproof, for Flowers. Harbor—Buenos Aires a Busy Mart of Trade ee CenEEe with Gleaming Min- RO Cee ET Oe re FO EE Pe ee ean Harbor—Hobart, Tasmania, Where Ships of ee 8 eee err Harbor—Malta with Circular Stadium...... Harbor—Marseilles a Beehive of Commercial PE (kev as As Uden cebedviceess catabeee Harbor—Nagasaki, Japan, with Natives SI oh. Gk SD cance aneees ot ckam bones Harbor—Para, Brazil, Filled ‘with Fishing PE sti etU cb bas ceKnks cientecadeeaaaas Harbor—Rio de Janeiro with Sugar Loaf Mountain in Background................. Harbor—Singapore Active with Natives.... Harbor—Stettin, Germany................4- Harbors—Naval Bases, Old, Turn to Indus- SE « baey we sdb sR O5.005,00505 684605 00 8 OR o'8 Hardware, Ideas ‘ot Value to Customer and Clerk, Prize Offered for............eeeee- Hardwood, Setting Screws in.......ccccecs Harpoon, Ten Thousand Year Old, Found... Harvester Thresher, Attaching Wagon to. Hatcher for Chicks, Sprouts Oats for Feed. Hat, Curiously Designed, to Attract Tourists Hat, Ear Muffs Hold, on, With Hidden EE he wake Bde dea ae Awd ker aa eae Hats, Cast-Off, How Dealers Make Profit on Hay Fever Cure from Weed..............4+- Headlamp Rims, Removing..............s+. Headlight Reflector, Auto, for Seeing SE SOE nn ee ccauabshees cd vibawaen Headlights, Automobile Emergency........ Heads Carved in Dirt Bank by Sculptor.... Heads. Trench Helmets in Mines Protect to eee eee Eee SP eee Headstock, Cathe Sub, Aid Cutting Long Tf eeere re eeeee ep ae peed neathee. Motor Drive for......... COHOSCHSHSSEEEHOSCSEHSHHTEOS SELES EEC ESEOSEOESSE Heart. Action X-Rayed of School Children Heart Examined with Lens While Beating. Hearse, Ornate, Gives Way to Simple Lim- ousine Body eas Heat and Power from Geysers............. Heat, Canned Sunshine for............. eaen Heat, Dial Without Mercury Registers..... a Electric, In Furniture Convenient and SS Aid Wa Ade ea eae dle cbt ob 6 sb balew Heat, Fire, Makes Cotton ge ee Heat Imprisoned PED ne ad tedeend NCS Heater, Bucket Used a8............cceeeces Heater, Electric, Socket . Heater, Gas, Using, as Stove..........e.00. Heater, Glue Pot. A Cheap.............c00. Heathen Relics, Shrine of Stone Age Yie'ds Heating Plant, Swimming Pool Warmed by Heating Problem, Auto Oil Waste to Help ee ree er mee ne ars ee Heating Problems, Scale Easily Solves.... Heatless Licht to Chain Almost Limitless a Oe Pe +. cccb sd dwee ewe Sige a eee Hedge Gauge for Clipping............2+0. Hedge Trimmer, An Electrically Driven.... Hedin, Sven: Can Mount Everest be Ascended......... Adventures in Asiatic Paths.......... 362, Heel Guards, Nonscuff, for Feminine Auto ee ee ee Drivers fal

Ho Ho Ho Ho Ho H 394 bet bt et et et et bt et et ot

Page 19

POPULAR MECHANICS INDEX, VOLUME XL, 1923. ight of Mountains Figured from Boiling WEEP o5.cc5s eed rsaevederenspbanest oeceans 71 elicopter Flights, Prizes Offerea’ eee 325 clicopter Stays in Air Fifteen Minutes. 402 } vlicopters BOttor MeCOPES. oc csccsaccevesss 77 elium Gas, Cold Greater than Arctic’s TUSGR COE. 20000 060802 esabeas os 87 tlelmets, Trench, in Mines’ Protect Workers’ Heads’ itt eans eetbnen sanennaen toureceee Bee emlock, Giant ‘is Divided, How ome dees eae 540 emlock, Giant is he cpeaeonid Tenement for Wie MERE cons tne kites nvadaerseee 841 iliemp Bark, Cloth "Made Ses haba eee eee 846 Hemp Made into Artificial Lumber......... . 840 Hom, Se Dh Pew hdd ase sec een ecessace 618 Hen Pastures, Back Yard............... «+» 648 Henhouse, Log, Bottle Window for. eee 146 Hens, Segregating Nonproductive....... «++ 645 Herring Splitting and Dressing Machine. 98 Highway Center Line Painted with Wooden WOE. 6:609:06465.40060.0056008 600606 60008 95 Highway, Experimental, Tested with Trailer 56 Highway Signs Direct and Protect Tourists 211 Highway Scales Weighs Moving Tratflic.... 174 Highways, Vibrating Machine Used to Smooth Concrete erry cre Tree ree 895 Hill Along Street Beautified with preys COBGRGS. 6.0.05.00 60.046659006480 4 pst ses “se. oe Hillside Shattered by Dynamite Blast. sia ae 905 Hillside Sign, Lettered Glass Projects... + a Hinge Stops for Casement Windows....... - 142 Hockey Field, Ice Block Fence for.......... 964 Hog Hanger, Handy... cccccccccccsccccsecse 809 Hog, Oiler, Homemade.......... cabuwhave 486 Hogs, Handy Chute for Unloading. anaes ee. 952 Hogs, Mixing Feed for.......e++eeeeeees . 304 Hogs Receive Shower Baths on Way to Mar- e43 FCT Tr etter eee ree Hoist, Bottled Fluid, Can “Litt 30, 000° eben 34 Hoist, Hand, Simple and Compact. seoe BOO Hoist, Simple, DO POs Ca vksdbensesecees ee 156 FOOGOr, Tse, BATONS sw ccsccckecccccctvcevecs . 563 Holder for Carrying Sheet Metal........... 626 Holder for Drafting Scale and Triangle.... 943 Holder for Filling Coal Bags..............+. 945 Hoider for Ice in Pitcher Keeps Contents COOOE svecccadadéneasedseseceesne errrrri s 330 Holder for Ink Bottles. .... ccccsceccscesess 686 Holder for Jelly Strainer Fits Rim of Drip PU -n onsen erndsts eins schseubbecseee es 4<6s 753 Holder for Kettle on Faucet.........cceeee - 963 Holder for Paper Rolls... .iccccccsces esccces BES Holder for Side Planing Tool.............. 619 Holder, Fruit Jar, for Canning........... - 114 Holder, Hot Pan, Prevents Burning........ 258 Holder, Ink Bottle, Homemade............. 483 Holder, Lid, Protects Hands. ......cccccsecses 494 Holder Makes Inner Tube Repairing Easy.. 650 Holder, Simple, for Light Work............ 629 Holder, Tennis Net, Serves for Many Pur- WENGE, £26 ccs annansonbscdbedereddssantwacoess 572 Holes, Drill, Cleaning in Rock or Concrete. 288 Holes, Mending in Aluminum Vessels...... 322 Holes, Sawing and Filling, in Slate........ 134 Hollingsworth, F. N.: Movies, Animated, for Geometry Students 5 — Voleano in Fresh Outbreak Destroys ase Hook, ‘Desrsten PUNO FIOTs céecwessccacveces 482 Hook Gauge, for Machinists............... 618 Hook, Journal, and Tack Hammer, Car In- CT ives k:adwesaes aden dane caer Se heawens 455 Hook, Rail and heer Handles Heavy DA. bth deind chee beet es eee bee eaRee ee 65 Horn, Auto Truck, “Placed Under Floor- ae er ar er eee 309 Horn, Big, Carved from Tree ae iimiaabe 931 Horn Fixture, Auto, for Repairing.......... 127 Horse Funeral, Mongolian, Pomp and Cere- SON FOP on 6ssne ss 000% rrr rrr ere 9 Horse, Vacuum Cleaner anette sa ates 570 Horse, Wooden, Cantering Raced by peed Oe ie ek ta ee ad on wae oo B79 Horses, Camels Take Place ‘of. ‘in Russia. 905 Horses Increasing in Number............ 491 Horseshoes, Machine Made, in” ola Smithy... . 260 Hose, Auto Washer Fitted to, Regulated by BEE. scdbsexcisubcacenseekaasd ‘ 371 Hose, Breaking Force of Water from. Hose 489 Hose Clamp, Segmental, Fits Various Sizes 53 Hose Connections, Wire Clamp for......... 293 Hose Protects Foal in Stall..... pasetéussen 316 Hose, Radiator, Hints on.............seeee. 962 Hose, Rubber, Airplane Refueled in Mid-Air yoo. ae Cebeden Seseceacecbdesccoce Ge 19 BROMO, WOOMIME, BtOMd 166. oiciicccccccccicae 141 Hospital Appliance—Cardiscope Examines Wee Ss co ccGaibdsciceuds.. 257 Hospital Appliances—Electrostatic Machine for Treatment of Rheumatism............ 11 Hospital Appliances—Poison Gas Test Device Detects in Three Minutes................ 165 Hospital, Horse, has Operating Table....... 897 Hospital in Paris to Serve Sick Americans 89 Hotel Roof Garden, Japanese, in New York. 37 Hotel, World’s Finest, for Japan............ 31 Hothouse Built on Roof of Building....... 442 Hour Glass on Phone Marks Time of Talk. 244 House, Doll, Queen Building..,............ 96 House, Electric, of Future to Banish Dr udg- GE. CcbbbsSeb dues avssees ds 6e6eabd &b0e06 443 House, Garage with ‘Sliding Doors Part of.. 725 House, Old French Pigeon, Resembles Fort 269 House, —— Design vex ssiigaceoraimncented Lay- SE sdénseeeeeseees ass cweneese Cnee 54 House, ‘Thermos, Saves Fuel. and Heips Keep Cl keseseecnede ded euns oeecas an eee 20 House, Two aids Moved Across 20-Foot Th cae wes beset dt ahhae £650 460 Wd oe es 6s 258 House White, | Behind the Scenes at the.... 918 Household Refrigerating Machine, Home- .... Re eo ere reer 83 Household Reminder Keeps Tab on Supplies 595 Household ee Folds Against Wall....... 33 Houses, Ant Hills, Material from, Used in.. 611 Houses Built at Angle Give More Light OD. 2 Wind se Hanwh eh a8 66 Oke eee dee sees en 279 Houses, Coral "Rock, Hardens When Used in 539 Houses, Frame, Corner Studs for........... 623 Houses Moved Across River on Barges.... 359 Houses of Plate Glass as Strong as Con- CTOGD cedcsencdocecerscngreaceesecucccves 661 Houses, Sample, Mailed to Prospective Buy- GD -8epe6erecene Neves bennee tbe seen sh0 ass’ 43 Housewife, Count Steps of, to Cut Down DE whstdtneretdaschbdsAWahnw eh binne «sas 354 Huller and Scarifier for Clover Seed........ 946 See, Seen, SO ME. oo kc bcos ctecccd 104 Hunters, Cabin on Auto Provides Home for. 64 Hunters’ Chase Accident, Camera Records.. 219 Hunting Million Year Old Game........... 739 Husband Does Cooking, Wife Hunting in PE. Skea clVaUd a ee MRER ee Ree ee hebben s 50 Hyacinths “Eaten” by Boat Turned into PE citer dss cbadeN Chen ead ee detesanoke & Hy cranes Bloom, Color Change of, Solved. 921 Hydroelectric Plant, World's Largest Gen- SRA re eer Sree 90 Hydrogen Tank for Toy Balloons........... 199 Ice Age, Freaks of, Cause Good and Bad NN res eee er ere ee 212 Ice and Wind Nature's Freight Train...... 569 Ice Block Fence for Hockey Field.......... 964 Ice Box and Stove Built in Kitchen........ 355 Ice Cake, Auto Marooned on, Takes Lake Di Letresataakenienakaneud deus bbe oe a0 60% 106 Ice Cream, Amount of, Made in U. S......... 341 Ice Cream Cone Holder Made of Cardboard. 166 Ice Cream, Crankless Freezer for........... 538 Ice Cream Eggs, Baked, a New Confection.. 82 Ice Cream, Gun Shoots, into Shell Holder... 415 Ice Cream “Noodle” Machine............e0.% 27 Ice Fields May Return Some Scientists Say. 277 Ice, Fish Eggs Shipped in............s200% 830 Ice Holder in Pitcher Keeps Contents Clean 330 Ice, Hot Weather Forms, in Coal Mines.... 882 Ice Keeps Fruit from Fréezing............ §21 Ice Made with Burning Gas and No Motor.. 179 Ice Making Machine, Small................ 581 Ice, Million Spent Daily on, in United States 885 Ice, Papier MAaché Replaces, in Fresh Fig . .... SSNS rr earn 686 Ice Plant, Mirrored Globe Reflects Use of. 27 SOOGr, Get SPO GUD coca cscs nabececcavc 633 Icebergs and Derelicts, Fighting, in Battle to Rob Sea of Hidden Perils............. 681 Icebox, Iceless Auto, Keeps Food Cool...... 178 Idols, Does Curse Fall Upon Those Who Tt Schau yeh ce kee hGewn bee beens aie cas 501 Idols, Power of, Still Great in Many Lands. 333 Ignition System, Flatiron Coil Used in..... 303 Image of Buddha Made of Human Bones... 7 Incubator, Egg, Used to Test Milk in Cheese DE Sigh Ci indkwaaeekneee dee eee eaee 654 ERCUDALOT, EMVOliMe the 2c ciccccoscccessccese 814 Se CE nso oon bk GEES WO eke ORS 134 India, Traditions of, Hold Natives in Slavery 407 Indians, Reasts of Burden, Cheaper than NE A 5 dio bie wath hoa acid oe oie bende 585 Indians, Islands Overpopulated with........ 72

Page 20

20 POPULAR MECHANI(

Indians, Rites of, Recall Frontier Days..... Indians, Vanishing Race of, Visited ne Ex- ns ME EEE TT Re ince Indoor Golf Course in Office building. ead, oh — Problems, Women Inventors Busy Industrial Truck, Small, Has Crane Attac h- REST ere rT ere eee Ink Bottle Holder, Homemade.............+. Ink, Removing, from the Carpet........... s Inner Tube Emergency Substitute for Radi- ee ER eer arr ert ey Ty Inner Tube, Self-Sealing, Defies Punctures Inner Tubes, Protecting from Rim Rust. Insect Actors, Mysteries’ of “Invisible” World Portrayed on Movie Screen by.... Insect, Beetle’s Glow Lights Room......... Insect—Boll Weevil Lured to Its Death by eS arr ceenee o Insect, Bug Sought in Orient ‘to ‘kill ‘Piant Beetle pa neeone as Tere rte TTA Insect Pari isites to Battle P rickiy Vear test Insect Pests Killed by Electric Lamp...... Insects—Caterpillars Stop Railway Trains. Insects—Moths, Balloon Motor Ship to sina” Insects, No, Bites Poisonous..........-.+++5 Insects, Poison Arrow to Kill.........+-+-- Insects’ Sense of Color Shown by Tests..... Insects, Wood Eating, Endanger Westmin- eter BEOll TROGE. 2c cccccsee sacs vsccsesses Instructions Cast on Machine..........+.+--. Instruments, Musical, Giving the Last Ween 80 605065066. 6.0- 000 0 cbs sep s,.6 6m¥ es Insulators for Heavy Wires Scre wed in by OS reer rrr Tiare rT Invalid Cart Driven by Dog Power eaiwe Inventions, One Man's, Keep Millions Busy. Inventors, Women, Busy on Industrial Prob- DOS On ee Island, Coral, Tiny Animals Build.......... Island Folk Think Devil Dance Cures Ills Island, fron Ore Target for Airplane bombs Island, Lonely, Deer Friends of Exile on.... Island, Matador, Wiped from Charts........ Islands Overpopulated with Indians........ Ivory Carving in Alaska becoming a Lost CD ey re ee ee ery ee ee a ee ee Ivory Gun Sights for Use in Dark.......... “Ivory Nuts” Form a Palmlike Tree Made PEE Lee Cee Cie Cee re BwOey.. Tere Weise, BEBE, 2.6 cocccstasecusdvee Ivory, Trade Guns for, in African Market.. Ivory Tusks, Record Size, from Africa...... Izaak Walton League to Save Nature, by H. i I ola ire ty acu ee ace See ee eee grea Jack, Bottled Fluid, Can Lift 30,000 Pounds Jack, Continuous Lift, Works Easily....... Jack, Folding, for Motorcycles............. Jack, Homemade, for Erectors............. ee Po cle deb beeen cede ae BR a ere a ern Jack, Simple, for Sawing Cordwood........ Jackknife, Model Ship Cut from Log With. Japan Bars Chinese Words from School UREN aoeacek raion ah icoe dha Clee b a & ee ek ae ** Japan, Great Earthquake in................ Japanese Thirst for Knowledge Makes Them ne Ce Se ethos tage eee e a emunsé dean Japanese Woman Artist Paints Court Lady Jar Holder for Canning Fruit.............. ‘S INDEX, 550 437 693 VOLUME XL, 1923. Jar, Mason, Used as Sap Bucket............ Ce a, ee ee eee Jewelers’ Diamond Setting Tool Attaches to EMERO acon Pee Ter ee Cee eer OP ee Jewelers Lens, Springs on, Hold it on Spec- a PPP eee ere ee er eee —* ' Indian Gems Like, Fad of Present ME Sexie baad suk bowed o6 dk hae meee Jewe Iry—¢ hain Decoration, Appears in New York Jewelry: Diamond, Largest, In the World Found in SP © “iiah a: wala BA eee 8 ee Diamonds Made from Sugar Diamonds, Beareming TOF... vcsiccvccceres Handbag Made to Match Gowns.......... Milk, Skimmed Made into Articles of PE Seacase ede nererdcwicaeaemaeal ees Pearls “Planted” in Oysters ee ry eed Pe Vanjty Case Contains Two Brushes....... U pod Sam Collects Gems for Priceless Ex- re er ray Jewels and Gold Used in Japanese Shrine... Jewels, Cross Made of Pins to Represent.... Jewels of Romance in Far Japan, by N. IN i: sec Stra b&b ence dc is cate wo aac Rae Jewels, Sugar More Expensive Jig, Repairing a Cracked Joint, Flexible Pipe, Will Not Leak........ Joints, Making Light, with Undersize Threads Jones, J. T. Edwards: Facing Death in Wilds of Peru........... Behind the Scenes in a Great Museum.... Journal Hook and Tack Hammer, Car In- NEON: inca Windia apa kod alg wea nn Ad wah as “Juggernaut’s” Wheels Again Moved by Pil- nn Se ear Soe eee ence Jumpers Cover Bathing‘ Suit While Walking SII | ale. c'anwien ba as Kettle Copper, How to Key, Lock to Secure, in Safeguard Kevless Tool Keys, aah be abi hittee cabs dita inl aces Pitts hd Ee nee Pinch wor ‘p ulls Gib Killer Whale, Ravages of, Cause Plea for ete, Ee ER OEE Ee King and Queen, England’s, Visit the Colos- POE: <tWES oe dT bES RUPE KG ode pee ohe eed ce Kingdoms, Secrets of Long Lost, Sought in Ruins of Once Mighty Empires Peer a Kit, First-Aid, Red-Cross, Built Like Knap- SSE EE a PES. tet oe Kit, Pocket, Cooks Meal for Two Persons. Kit, eee ae ee CM Ss tak w vie 6 cle ok bis Kitchen Cabinet, Modern Kitchen Equipment Lessens Steps of House- ws ek NGs Caw eS aka tehne broek cecsl cox: Kitchen, Fresh Water for Farm............ Kitchen has Vanishing Table and Seats.... Kitchen is Run for Germs...........cce00¢ Kitchen, Stove and Ice Box Built in........ Kitchen Stovepipe Used as Warming Oven.. Kitchen Table, Bins Under, Save Bending.. Kitchen, Typical Of 100 years AGO. <... Kitchen Utensils: Bucket Used as Heater Can Opener REPRE RE rr a ears es Coffee Measuring Cup Has Slide Bottom. Coffeepot Drip Stopped by Rim in Spout. Coffeepot for Campers Won't Burn ands Cooker, Double Bottom. Corn Houser, Hand Connie SAS ee ee Crank Driven Machine for Mixing Liquids Dishes, Three, from One for Kitchen Oven Dishpan with Adjustable Legs siete Dishwasher, Electric, Fits in Sink aihoaig Glace Doughnut Cutter Has Trigger for ing Central Portion eee ae Fish Cleaner P revents Scales from Flying Freezer, Crankless, for Ice Cream Fruit Jar Holder for Canning............ Fruit Jar Rings with —s Dit cncawea ae Frying Basket Forms Cup of Shredded II Sits oe dr eanaicein wid k/hce a WKCa Re aie 697 98 169

Page 21

697 UR 580 169%

POPULAR MECHANICS INDEX, VOLUME XL, _

Page 22

22 POPULAR MECHANICS INDEX, VOLUME XL, 1923. Letter Shelf, Detachable, for Desk......... 127 Ratesiner Fath, CIUIRe COE 6 cc ccc ccsanscsecews 849 Letters X-Rayed to Find Missing Checks... 273 Lever Drives Naiis ted into Spring Jaws... 685 Leviathan of Iniand Waters Launched..... So6 Library in Park Lends Visitors Books...... 821 Library, Japs Wishing to Enter, Wait in ee OTRO ET COO ROE PE ee 104 Library, “Talking,” of Voices to Preserve IE PT ee ey FETE ee Te 565 License Plates, Auto, Preventing Vibration EE ERE Oe ORE rr ee ree ee 161 Lid Counterweight for Holding, Open on rere yee ee re eee eee 145 ies, Device Detects, Shorten ee 416 Life, Fifteen Years Added to Span of, in > | 7 A rr er re . 570 Life, Fountain of Eternal, Described in ee OP TCC Pees Cone ree ree 601 Lite Saver—Air Chamber Saves. Divers Beste Bt Wet ccvvsvcsvsecenisecace 357 Life Saving Suit to Keep Bight Persons Ee Ry Era 170 —_ Ten Degree Change in Sun Would End oS ae a ee ene U6 Lifeboat Lights, Electric, as Safety Beacons 37 Lift Platform Dumps Dumpless ‘Lrucks. 72 Lifter, Bottled Fluid, Can Litt 30,000 Pounds 34 Batter for High DrOwers..cccccccrcecessecns 462 Light and Plug with Reel Containing Wire 1:14 Light and Sound Weve Lengths Prhoto- 65. dane) eewiet meek 0b akina tauee ae ae 95 Light, Auto Pilot, Turns with Steering PM cvereqnch eee hu hewniasn cewek as ba -« 2865 Light Bracket Arm Attaches to Dresser.... 116 — Clamped to Finger Aids Night Work- ons Light, Dot of, Tells Time of Photo Exposure 402 Light. Filter, Gold, Motion Pictures Made Pe MEER sis wc cneneunens ohb.Guds ea san wed 377 Light for Door Panel Sign Acts W hen Knob Oe aera rrr re Teer eC Te 80 Light Guard, Portable, Easy to Attach...... 95 Light, Heatless, to Chain Almost Limitless OB errr ee eee eee 704 Light in Fountain Pen for Writing in Dark 3382 1 Intensity, Gigantic Globe for Measur- one TMB ccc eres e sere essere sees sesesesesseseses ‘ Light Is Enemy of Museum Treasures..... 187 Light Ray to Hold Weights Afloat in Air. 609 tight Bayes Cure for Burne. «ccscccesscsace 846 Light Rays, Pearls “Planted” in Oyster De ee 8 ee re errr es 557 Light, Rays, Selenium, Carry Veice Through ee CP sc a. tiewrewsnekhed eae « 08 ee OR 340 Light, Shade on, Guards Eyes.........+..+. 678 Light Shade for Sorting King Tut’s Wealth 201 Light Socket, Electric, Has Six Changes of OO rrr eee ee 269 Light, Trouble and Tonneau, for Auto...... 154 Light, Trouble, Worn on Cap...........cse0. 118 Lighted Airway over Atlantic "predicted. 855 Lighter in End of Pencil. ....ccccscccccccccs 84 Lighthouse in Memory of Columbus to be PEO. 26 bb KeD OHS RODE ERO DDE ROMS DOME AA® 50 Lighthouse, Net Built Around, to Keep Off.. 897 Lighthouse to Honor CI ioo's0 o's 40:8 50 Lighthouses, Fog oe for, Controlled by TORRES cineca ckdane esse ahedeveeas eanen ¢ 775 Lighting Arrangement. for ‘Store Window. 127 oe Cloud-Flecked Path of Night Air ess Lighting Fixture, Foiding Ceiling Fan Part s14 — Bolt, Man- Made, Wrecks “Toy Vil- ons santie, Auto, Under Fender Remove Glare. 403 Lights, Bay onet Socket, Changing Base Con- DOU OE nk casa ctdudvateesbs wae eeeanved 292 Lights, Bugs paren to Bright, Become Fish PD. cidntnade edviedkvnsr ieee babes ects 735 Lights, Electric, Concealed in Artificial ge ee rere er ree. ree 927 es aaron for Christmas Tree, Ciamp on agne eh hk i she RAE: Reis he ae maton ew 657 aenta, rE ectric, on Map ‘Show City’s Growth 257 Lights, Emergency Auto ...........+. 324 Lights, Flaming Oil Weil, a Beacon of NE pear ye Ree reyes, Cer ee Lights, Flood of, Covers” Palace cb eatheeaeee - 8384 Lights, Glass for Telephone Signal..... woes Bae Lights, Lifeboat, as Safety Beacons..... 37 Lights Mark Stolen Auto As baerere gar “to a! rere rea errr boned) ie Lights, Movable Wall Bracket for.......... 607 Lights, Narrow Curtain, Repairing... weuwe es -. 970 Lights, Northern, Man-Made, Lights, Ship, “Rule of the Road” at Sea Gov- MD sc ceddesdhierenn nese s 0.4ehisneennein eas Lignts, Street, Halt Crime. .. ee ha eee 560 Log, Model Ship Cut from, With Jackknife 587 Se PE CNi.ws bec ohscugedenedonetoaws 293 Logs, Cedar, Floating in Lake Forecast Rainy NN, gr a ee oe a awe aen 749 Logs, Iron Used to Float, to Sea........... 275 Logs, Saw Attached to Tractor Saves Haul- . ME A. sede Reads bead ehh bad eh sees sd dans ee Os 769 Logs, Simple Jack for Sawing............. 307 “Sern the Loop” Stunt, Girls Face Death 3 ey City, Farm, Pays $2,500 Profit Yearly. 2 “Loud Speaker’ Guides Ships to Port....... 245 Love, Edwin M.: A Portable Electric Forge.............6.: 451 Lubricant, Tail Center, Beeswax as....... 126 Lubricating Wristpins (1 F4nb be hens rh ee eae es 619 Luers, Geo. Building a Four Passenger Hand Car. 475 Lagesse Carrier, Auto, Hidden When Not in oss Lumber, Artificial, of Hemp ilies bbe asst tte ia aah ae 840 Lumber, Roller for Handling....... jekwokae 953 Lumber, Scaffold, Identifying....... 632 Lumber Supply, Artificial Wood May ‘Save. 831 Lumber—“Wormholes” Sold in Europe..... 437 aeenseek, Passing of, Recalls Drama of on COSCO OSES SOC H OLE SE SESE SES EE SESE ) Lungs, 170,000,000 Cells in, of Adult........ 24 Ma Chang—Chinese Gift to America........ 673 Machine—Bathing, Driven in Water by PD. 6 Sean s oeaw 04 60es sess bine haeeden's Be 329 Machine, Crank Driven, “for “Mixing Liquids 997 Machine, Emotions Tested by, and Accur- SSNs a ss neeie en nckewscataweebns « 341 Machine, Exercise, to help Correct Eye De- eer rere rere eer ree 340 Machine, First, for Stampin Seal of State.. 769 Machine, Floor Marking, — Close to EE SKS ak ode os Obes ee dines 060 4 Kee ‘és 449 Machine for Planting ‘Sugar CERO sss oe sn ess 938 — Gut peiennts for Rackets eae aso Machine, ‘Huge, for Stump See 758 Machine, Ice Making, Small.............56. 681 Machine, Instructions Cast On........05e00% 632 Machine Measures Unbalance of Rotating PERS Gis oe ceded vecvesenevecn rrr 612 Machine, Ozone Makes Air Fresh....... os B09

Michi Michi Michi Machi Can Machi Machi Sho Machi Machi Machi Magn Magn int« Maho Mail, of Mail, Ber Mail Mail Mail Let Mail Mail | Mail, Day Maili Mailn Wo Mails Man | Man, Man- lag Man Man, Mand Mang Mang Mank Asi Mank Mang net Mani Cas Mani Medi

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one a cal a] Cww crew “Ken wo we _~>S -1 w er = 20 ow f 10m BOM wor 341 Lamp Post Directory is Handy Guide hine, Pipes Lined with Concrete by..... hine, Rain, for GArdens. ...cccscccsecess hinery Erectors, Homemade Jack for... Meochinery for Wireless Station Carried by Came Bee Bee ogabsa cers cas nagnucova Machinery, Suction Cleaner for............. Machines, Electric, Blind Taught to Fix SHOGG GE sie cecs sedsassescsrasinsccceanses Michines, Setting to Conserve Space Machinists, Handy Gauge for Machi ee MG og 00 cca Sha 64 chk ee ce M enifier on Pencil for Close Work......... Magnifying Glass, Light in, Turns Night OP eR a ee ee Mahogany Trees Grow 200 Years wee re M: "ae Air, eases Beacons to Guide Flight OE ceoeeteeseeeseseseeessespeesceseesecsesese wpe Air, Letter Boxes vi ile on Streets of er in Mail Box, New, Assures Safety and Privacy Mail Boxes Painted White, Name in Black Letters, In Rural ||” naire tip ealpoaagantan Mail Record, Airplane, Five Million Miles. Mail Service, Airplane, Across the Continent see 6,000,000 Pounds of, Handled in One IO aia wth dibs oN be a ane od Mailing Tubes, Metal Fasteners eee Mailmen Sleep in Airplane as Relief Crew i rr rie aa eer Mails Bar Imported Bees Because of Disease Man an Electric Machine, Doctor’s Theory.. Man, College, What the World Offers the. a Bee Lightning Bolt Wrecks Toy Vil- ODD ih00s + 60kt ene Oh bermpenbbentedaeasien Mets” Proved to be 162 Years" ola by Records Man, Wild, of Borneo as He Is Today M:z indrel, eyed, Aids yg Mangle, Clothes, Built in Wall. Mangle Rolls, Guard for Mankind, Cradle of, pO Rr rrr rrr eee Mankind, Progress of, Measured by Bells. Manganese Steel Not Susceptible to Mag- netism eee eee eae re es Manicure Set, Book Cover. Hides ‘a Vanity CE Senate a keaihe nea e beeh ane ewolictc Manicure Stick, Fountain Carries Polish. Map, Electric Lights on, Mark City’s Grow th Maps, Aerial, of Alaska to be Made by Navy Marathon Run Over Crater of Old Volcano Marble CHOCKES, RODGITING. 2. cccccdiccccvcss Marble, Quarrying Re eee Marker, Lazy Tong, for Garden Marker. P ie ‘Crust Sealer and Marker, er EE Se Ree ° Market, Grain Caverns in Fort Used as..... Market Reports for Farmer Marcuart, Everett W.: Boy Scouts Round Up 10,000 Goats Mars to Approach the Earth.............6. Mask, All Purpose Gas, Lets Wearer Talk.. —- Flexible, for Girls Make Them Look Dv d4GK Shs eee Sacenkedaeeseelee Mason Jar Used as Sap Bucket........... Mast, Improved a Gives More nae on Deck ee ee ee a ae es ee pin Matador Island Wiped from Charts. ' Match Lighter, Safety, Prevents Accidents. Matchbox, Tiny Home in, Feat “ Carver.... Matches, Chain Carved from. Matches, Five Billion Daily, ‘Supply “for World Joneuebees abuses Cae ee Mesenes Used for Money ‘Where’ Copper Is Eee ee yO ears ee Mattress, A Three Plece. ss... eee esses, Measles, Serum for......cccccses Measuring Cup, Coffee, Has Slide Bottom. ee Measuring Tape Made of Rustless Steel.... Meats, Smoking of, Can Be Done at Home.. Mechanics, Banditry and, Conspired, When, by Sidney McNeill Sutherland............. Medallions, Stained Glass, Work of Students Medicine Cabinet More Convenient, Making a Medicine from “Oil Birds’ Used in Peru TF NII cvadeetgilar ete: ararhtaletatiy in aieeae Medicine—New Drug Cure for Paresis...... Medicine—Odd Remedies Found in Old Book ws 939 772 508 81 802 556 Letter Machine Sorts Directly POPULAR MECHANICS INDEX, VOLUME XL, 1923. Memorial to Army of Conteseresy Started in Georgia nase Memorial Tower, ‘War, PO, IN occ chbuccrnccccossccere Men, Where the, Are Veiled.............45- Menus, Variety in, Given by Turn of Dial... Mercury, Dial Without, Registers Heat.... Messages Recorded in Code Explained by Typewriter ....... re a) ee ee Metal, : Like Willow, Yet Strong as BERGE 6.6 ch edee Ceescecsaesereeecsceeseosseceses Metal—Brass, Cutting Chemically.......... Metal—Cast Iron Borings Molded _ into BrhGQuettes .o ccc cccccccccssccccccccccevccs Metal, Cementing Glass Oe is awe aes edenia Metal—Coloring Copper Black and Brown. Metal ee Increase Gasoline E ffi- CE 6 cadedas ds panda es te6ne460 004.5) 088 Metal “Pish “with a "Rudder Made to Thrill BOG ond ana 6 60000089 as00resessececer Metal Frame Protects Auto Radiators...... Metal—Gold and Silver Bound for India.... Metal—lIron Making, Age Old, Used in China Metal Potato Cutter .......cc cee seeccencees Metal—Silver, Stainless, Invented.......... Metal—Steel, Drilling Hardened .......... Metal—Steel, Manganese, Not Susceptible to Magnetism A PCP rrrrrTrrri Tree Metal, Strength of, Told by Squeak......... Metals, Action of, on Milk Studied in Tests. Metals Affected by Acids Kill Germs....... Metals, Pendulum Instrument Tests Hard- DONS GE 666s 6cccdcbssvns oe Metals, Rare, in Oil “Shales. a ee ere Metals, Whitening Process for.............. Meteor erry by Camera 7 Flight “Across Ss of Meter “Dot, Exposure, Tells How to Time P hotographs (CRE SOT PLOT TC Te COT Meter, Water, Submersible Dynamo Used in Meters, Taxi, Used in Ancient Rome...... Mexico Encourages Adoption of American SER OOE GERD 4 oo cc once seen sazecrecovece Mexico, With Death at the Throttle in..... Mica Clears Radio Tones of Metallic Sound. Mica Obtained from Crystalline Rocks...... Micrometer Attachment for Height Gauge Micrometer, Beam, Making @..........+++++ Micrometer Snap Gauge Aids _ Inspection EP Pre errrr rrr er ree hr Micrometer, Snap Gauge and, Combined..... Microphone, Piano Tones Broadcast by Im- DIG . b.600% 05 cn6s6 dsb beaeds deinnssasee nee Microphones in Halls of Hotel for Paging Guests Microscope, Cutting Human or Animal Cells rr re are; ere rer Te Te Midget of Circus in Race with Giant........ Mileage, Auto Diesel Engine to Increase... Milk, Action of Metals on, Studied in Tests Milk Bottle Cap Lifter, Sanitary and Useful Milk Can Covers, Tool Removes Milk Cans, SEE ce6edc wun ness sb cseerb cue ceeener.o® Milk, Egg Incubator Used to Test, in Cheese Underslung Wheelbarrow Making LINC t Aces ODER eene es Chabon wea habe Milk, Skimmed, Made into Articles of Beauty Milk Stirrer, SE POMS se vic ccvcsccssvscsese Milk, Wood WE SMO, bccccakaanwswwariens Milky Way is “Yardstick” to Measure Uni- verse _. Rotary Ore, Gold Washed from Rock Milling Cutters, Milling Machine oo Bt Rea eee Mills, Steel, Eight Hour Day Gradually Put in Effect in Mind, Pictures of, Without Camera Mine Explosions, Preventing..............e.. Mine, Hot Weather Forms Ice in Coal Mine, Iron, Old, Brings Wealth ° Mine Locomotive, Flame Proof............. Mine Locomotive, Safe Type a Prize SE wes due dil Se euecevetawas Mine, Long-Lost, Found in Mexico. Mine. Mushroom Garden in.............se0.8. Mine Phone to Help Save Lives of Miners... Mine, Rich, of Plant Root, Yields Paper and epi athege talepipergeanen Bens aati ape page Mine, War, ‘Turned imte. Minsd WOE. «cs cctseccd Mineral—Tourmaline Has Queer Properties, Mineral Wealth, Mexico First in Miner’s Air Tank Straps to Back eee ee eee into bags... v4 237 970 787 654

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24 POPULAR MECHAN Miners, Phone to Help Save Life of........ Mines, Old Gold, Reopened ee Pee Te Mines, Pests in Cotton Fields Boost Arsenic Mines, Women Employed in, of India....... Mining Camp, Cloudburst Sweeps Tons of NE GOD: kp ae cae OhbWEK ET OS OTTO TOO Cee Heme Mining Gold from Dust on SE. os 26 0c Mining Cie: BAP TOP TAS MORO ood ccccwssanse “Minister, Silent,”” Broadcasts Sermon on NE cn ash tak ee hate Se bes eoNS CCA eee ee ee Mint, Printing of One Dollar Bills Takes IR UE cr turd we nal 5s Ok RAR ee he ooh ee ae ales Mints, Making Flood of Money Keeps, Busy Mirror an Effective Lure for Fish.......... Mirror for Ironing Machine............see- WEerSe 355 BISURE TOWSE 2. ccccsccvacacecsecs Mirror, Light in, Aids in Shaving.......... Mirror. Magnifying, Contains ‘tiny Light EY cig aiom 0 actce Gok ahh a Kh eo wid w eee ace ee ae Mirror, Red on Auto Serves as Warning Tail eee ee re ee ere eer eee Mirrors Coated with Gold Rival Those of Ree Pee ere nr oe et ee ee Ar Mirrors, Reflecting Camera, Replacing...... Mirrors Used as Scarecrows..........c0ec08 Mirzaoff, A. N.: Eyes, Science Rivals in Making.......... Temple, Long Lost, Glory of, Restored... Misfiring, Truck Engine, Curving........... Missionary, Sail Hitched to Windmill First Festive Twig Else- by Mistletoe Pest in South, EE Ee ee ee eae, Se Miter Box Clamps, Quick ‘Acting ee ge er Mixer for Dough - Re ee ee Model Houses Mailed to Prospective Buyers. Model Power Boat Speeds Seventy Miles an nthe 5 at nd ek bashes abstain, Wm © bcs ani are Waianae Model, Railway Track, Shows How to aa EEE 65 :k pidge eS Bon Sn he Lee «eam ecw Re Se a nee Moisture Proof Powder is Also Smokeless. Molasses Used as Fertilizer................ Molasses Yields Fuel and Potash........... Moons, Jupiter's Night Sky Ablazé with... Moose, Lordly, In Quest of the............ Monastic Republic, Women Barred Out of. Money, Calico and Bicycle Help to Subdue Bate se tik Fy ak ogo peaks IR pte ois a na aoe eo Go es Money—Coin Collection PSEC OR DEMROIER as uc seas cs 0d %402 ore Money—Coin Press Makes Five Dimes in a EE wn od ats wy eine Sols + De aks ee a wk Money—Coins and Silver Bound for India. . Money—Dollar Bill Printing Takes One NS iat Ghia cn 19 sk ar peice tne bas Bae ak ack Money, Fish Serve as, in Labrador Money, Making Flood of, Keeps Mints Busy : Money, Matches Used for, Where Copper Is ee A ere eet 2 ee ae Money, Paper Leaves Trail of Ruin in Eu- POPS secre rr sresrsecioseeesrececrecineseces Money, Tragedies and Romances of World EESUCORS BOOVORIOR DP se aoc cc cence cvenvceees Money—Two Dollar Note Money, U. S. ee Pee re eee ee eee Mongo! Workers, Store Mongolia, Buriats of, Have Queer Customs.. Monkey, Cycling, How to Make............ Monkeys Worshiped in India as Friend of eee ee eee Lee rie Monoculars, Range Finders from Guns Used Takes Place of @B .ces Monorail Taps Wealth of Death Valley, ar: eee RO a 6b va occ ews een te Month, Day and Date, Calendar on Clock a! a ae ore eT ee he re ere ee Monument, Gen. C uster’ 's, Damaged by rere ey ey eee eee he er TT te Monument Is Warning to Careless Drivers.. Monument—Mormon Castle Kept as Fron- SOE 5 6 od Wad sa Oe Nemes Wok Ob oe tee Monument Shows French Gratitude to U. S.. Monument to Army of Confederacy Started in Georgia S666 06 00 KSEE SS WD Row OOO sete se eO8 Mop; Five-in-One, Keeps Hands Clean...... Mormon Castle Kept as Frontier wierd Relic. Mortar, How Hindu Mixes Mosquito War, Dynamite TT SE Tee ore ee eee Te eT TEL Moss, Spanish, Used for Stuffing Furniture. Moth, How to Help Catch a Moth Proof, Cloth Made, uid in, Cle ars ‘Breed- with Odorless “aia VICS 716 856 606 736 305 268 336 INDEX, VOLUME XL, 1923. Moths, Balloon Motor Ship to Fight........ Moths, Gypsy, Balloons Kill, with Spray oe ak aad gn eae eM One 6.0.60 Rae eke bee Oe Moths, Hints ONn...... 2... eee ee ee eee eens eee Motion Picture Apparatus, Special, Films WUROR WIG occ occas s wsecdtevcusneseay eee Motion Picture Camera Films Combustion PPROOEE once ntasd 400.0 440 SNe 6e OR naw ame ws L07 Motion Picture Camera Lies, How the...... R7S Motion Pictures, Camera Men Risk Their EAveS im TAMIME «oc cc cence cece nse coc vegies 904 Motion Picture Camera, Tiny, Takes Full OE SS eer er errrrererry Te ee 78 Motion Picture Film Gauges~Accuracy of CURRIN Co cace cone esos teehe Keak meee s 11: Motion Picture Film, Toy Shows Real, Without Use of Screen ....cccccscccccess 585 Motion Picture Films, Paper, End Danger of EE: cca ves cebeeee ti ukr beds 6d eae SERED © 337 Motion Picture “Klieg Eye Pre ventive Prins Cieree BOF cx ance cen ccese nes satenne 25 Motion Picture Plant, Motoreycle.......... 16 — Picture, Ten Tons of Hands Built for , be ait ae 2 CRRA eee eee Kies Oe Oe a eee ee 19 Motion Picture Thrills Made to Order ie eit 379 Motion Picture Titles, Prize Offered for.... 65: Motion Pictures, “Airplane” Scenes for, Taken from High Ladder...........-+.4+. 693 Motion Pictures, Animated, for Geometry Students, by F. N. Hollingsworth......... Motion Pictures, Camera with Two Lenses GvGe TIOWEN Bibs o ao6-0bb 0s batectaigpannens 736 Motion Pictures, Depth in, on One Strip of Ree rrr eer re ty ee eee 3 Motion Pictures, Insect Actors in........... 713 Motion Pictures Made Safe With Gold Light POS cantee bs ae ase s aM ae eae eee 377 Motion Pictures of Fifty Years Ago Made TO Bee Wet. is ice pcsvcassesstwgsaines 354 Motion Pictures, Perfumes Add Re sality to. 11 Motion Pictures, Radio Eye Sends, Through Cf BOUT e ee OO OT CTT Oe ee eet 171 Motion Pictures, Radio Speeds Up Taking of 165 Motion Pictures Show Sun's Eclipse........ 694 Motion-Pictures, Tented City Built for..... 440) Motor Boats, Round, Used for Playing Tene Se BE. vc chedevenacsabendee ves ee 684 Motor Bus, De-Luxe, Built Like Chair Car... 420 Motor Bus Repair Plant, London’s......... 87 Motor-Sus, Sight Seeing, with Folding Top 769% Motor Busses Haul Children to Consolidated PUNE. | i calieecnaea Cael week > i eoowl teadn oe 81 Motor Cars, Murderous, by H. H. Windsor... 47 Motor Driven Tool Cuts Commutator V Slots 777 Motor Driven Vehicle with Egg Shaped IR es a Pe A ae Se 861 Motor in Headstock, Wood-Turning Lathe sh seh a Oe oe ae ee oad wes 6 awe ORE Rose wee 44% Motor Mounting, Universal. Ter Tete Te Motor, Small, Fastening Pulley” | ey ee ee 46 Motor Starter Do Ee ee eee 81 Motor Truck Body, Steel, Proteets Silk in EEE: ebuldiNn ny alk cwra'ahk eA dee @ way wie ede we 92 Motor Truck Engine Misfiring, Curing... 284 Motor Truck, Light, Starts Airplane Engines 96 Motor Truck pS Serr eee 291 Motor Trucks, Dumpless, Air Lift Raises.. 7 Motor Wheels Do Work of Switch Engine. 140) Motorcycle Film Plant Makes Quick Movies 16 Motorcyle, Furniture Dealer Moves Goods on %4 Motorcycle Jack, Handy Folding .......... 65 Motoreyele on poeies Track Leaps Human DEE Sathiws thble ae ba else cba ee hk 853 Motorcyele, Radio ‘on, Used to Catch Bandits 199 Motorcycle Runs on One Wheel............ 447 Motorcycle Saddle Adds to Comfort........ 5 Motoreyele Sidecar Race Abroad tc Show I airs ci Gin alas iNeed rile a alone & Dw a 221 Motorcycle Transmission Oiling............ 806 Motors, Washing Machine, Oiling.......... 146 Mount Everest—Can It Be Ascended, by SR ran TE Ata Jeet mee 20 Mount Everest, Conquest of, aap ga with SL: Ged hb Saree eae ose e boc ba als wee dae 557 Mount Rainier Model Exact in "Det ee 187 Mountain—Alps, Radio on Top of, to Give TERE GEE: digas Cas ea Wentens vaee 17! Mountain—Can Mount Everest be Ascended, ee eh ED -s vicinigs bce wah a cise eotn wane se 20 Mountain—Conquest of Mount Everest Se Fe SPO ob isi eseencwsvens 557 Mountain—Death Valley, Monorail Taps Wealth of, by John Anson Ford........... f Mountain, Ghostly Legend Treasure Guards Peak Mu: Mu Mu Mu Mu Mu AA ALALASO wy ley le te APAAAAA ALAA y,

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in “* 853 ts 199 447 avo w 221 KO6 146 Vv th 203

Height of, Figured from Boiling intain, Vater auntain Memorial to Army of. c ‘onfederacy Started it GhOOPBIR... os ccccksegesecesaens intain—Mount Rainier Model Exact in OteEE bec eis eendedunsesee . untain—Pikes "Race Bars reek QAiGe 6.0 665605-.cianetabesoneneasons jountain Wonders to be Mz ude “Accessible, o J. Ge Bs a oe'e ck archaea tae ounting, Novel, for Manual Instruments. couse with Pouch, and Rabbit Like Ghost. wer, Lawn, Sharpened Like Razor Blade ower, Simple Lawn, Repair.............. icilage Bottle, Empty, Further Use Made Of -..d0c knee a Rede wea makes ootaih eee een boa ca d, Skis and Boards Used to Walk Over. id, Tons of, Cloudburst Sweeps on Mining CAMP ccccccescees Mud “* to Lubricate Oil Well Bits...... Muffs, Ear, Hold Hat on with Hidden Spring Mule as Caddie, Carries Golf Bags......... Mummies, Does Curse Fall Lcsoteaee Those Who Touch — CESAR ERE MO SW EOE SMON DS SOD OAK OED * Behind the Pacha in a Great, by I, Fe is. vad eres ch rae asc Museum Building, Fireproof, Granted to Smithsonian Imatitution .....-sccesesscas Museum Treasures Damaged by Light Muse um, Mushroom Garden in Mine..............0+. Music, Color, Rivals Hues of Sunset and Rainbow aoe. ede Music Notes Sr Mechanical Typesetting, by George 5 ARS ee re ree Music, Rice Planted to Dance............... Music Roll, Planes Run by, Without Aid OF ee kein sh Mae b hea oe Oss eee eeu ne Music Traced Through Ages...........:2.-.. Musical Instrument Rack for Quick Changes Musical Instruments from Cigar Boxes, by Ws ee MO Cb cick Stree « cate etalsin ate ane o's . Musical Instruments, RON TS ako 6 kb ukosdwew kanal boa nes Rane Musical Instruments Touches Musical Instruments: Piano Tones, Broadcast by Microphone... Saxophone Rivaled by the Sarrussophone, ee re Reis ar Saxophone, Slide, Violin, Smashed, Restored Speeds Up “Jazz” Music "86 Ye ar Old, Suce eeneerd Musical Tone on Telegraph is Faster “Than CHORE. 6140 ere tr ry rere Trees “Mutton, Turned into,” Weeds “by Discov- OES Bei Gate tans oad Pe ee eS Ps eee Nail Collar Makes Nail Easy to Withdraw Nails, Clamps Instead of, Used in Scaffolding Nails, Lever Drives, Fed into Spring Jaws.. Nails, Upholstering, Improve Steering Wheel Nations, Secrets of Long Lost, Sought in Ruins of Once Mighty Empires........... Natives Paint Selves Yellow.........-.see¢-. Nature, Saving, by H. H. Windsor.......... Naval Bases, Old, Turn to Industry......... Naval Guns, Largest, Given First Test...... Naval Guns Simulate Huge Pile Drivers.... Navy Tests Airships to Guard Lives of Crew Navy, United States, Growth of, Halts with Big TOPORGRRUERE «osc ccec cs sn csessavecsvss Needles, Phonograph, Made of Bamboo..... Negative Rack, Simple. ....vcccccccccsseces OS Fe eee on Her Head... and Hies.... «+ Lighthouse to Keep Negatives, Drying Negro Mother Carries Baby Nest, Automatic, Traps Hen Net Built Around Birds Net Holding Device for Large Laundries... Net, Fish, Frames, Africans eae. to Save EME cccvacadicvawbacheenpies dD a 54 685 e's © Net, Fish, One Man, Spreads Like Huge Fan Nets, Hair, Handmade, Too Fine for Ma- CED «is walehae se Kee ac RSS Oa Se bec dees 30 Newspaper Halftones, C opying. Deen 6 sea wee a Newspapers, Cairo, Egypt, Boosts Greatest a Es ee ees eo reer Newspapers, Fifty-Six Thousand, Published eR rrr rere rrr ery Crit er New York to China Flight by Airplane a. SPP errr oie eee ee ore Niagara Falls, “Eagle Boat” in Clutches of 173 POPULAR MECHANICS INDEX, ee] “HN bhoean oS 34 aa = Sen be Soe: w <= 844 659 893 438 VOLUME XL, 1923. 25 Niagara Falls, Submerged Electric Lamps to CN cn thet de eek Cane thee ae ae hes eee 435 Nile, Brides of Ancient, Cost Three Dollars 505 Northern Lights, Man- Made, Created by SO: de Dee tts bas ee Rak sen eae sass ee oe 421 Notes, Music, Defy Mechanic al Type setting, by George MN th a oe yb. nd x's maton 433 Novelty—Matchbox, Tiny Home in, Feat of SEE Acs cased s has Rd KOO eb 6 6S bos 00 os 263 Nozzle Spray, Soap in, “Aids in Washing DN nt. cb t.be CAE pe 40 One's Ke Ws oo 8s 526 Number for ‘Sizes Under New Sy a 273 Nursery Tree Roots Grown in “Splints”.... 95 te Bottles, Wild Animals Brought Up rm Pere TT OPC eT TERT REO CU URLPEAE TILT E 240 Nut. Floating, and Washer for Arbors...... 454 Nut That Locks on Bolt.............-.205+: 689 Nuts, Inaccessible, Tape Holds............ 323 Nuts, Iron Fingers Crack. .....02:0+-ss.00. 937 Nuts on Double Lock Bolt Cannot Work LOOSE .cccee oe eeite ee ce Sah ct Ss Mein Re a eee a a §27 Oar, Sewing a Split... 2. ccrcccsccssscseses 813 Oars, Hammer TOF... cc cscccivescevesssesace 649 Oats, Hatcher for Chicks Sprouts, for Feed 562 Observation, Accuracy of, Movie Film GOMOD oo ee seers cceegorersrersesecsnececes 11: Obstacle, Race Soldiers’, Tests Endurance... 255 Ocean, Bottom of, Luminous Clouds Light.. 435 Ocean, Fighting Icebergs and Derelicts in Battle to Rob, of Hidden Perils......... 681 Ocean Keeps Tragic Secret of Oil Tanker 770 Ocean, Pacific, Bottom of, Charted......... 371 Ocean Waves Harnessed to Build Beach ie eee keke eus eter aneed eta aph ene een 86 Ocra Whale, Ravages of, Cause Plea for POE cc és bent einhee eb eounene ad 2 OW 4 41 34 Odor to Lure Boll Weevil to Its Death...... 34 Office Building, Five Story, Only Ten Feet A eek re pee ES hk wai s oS cee e Hee & 186 Office Building Has Spiral Drive for Autos... 226 Office Burned in Fire Test............--.45. 63 Office Appliances: Ash Tray, Movable, Clamps on Arm of aac coed bh Rakes kb kee ed bl de eee 220 Brush on Typewriter Cleans All Charac- COPS Bt CMCE 2 cccscdecesecscresevscesese 888 Carbon Paper on Typewriter Rolls from Te EEE Che pddiedesianrt deat ce iavawes 830 Chair with Adjustable Legs.............. 557 Desk, Cover for Flat Top, Rolls Out of | Pr Serre Ter ere Tee at ee ee soe Desk Device Tells Return of Occupant.... 236 Envelope Sealer, Self-Adjusting.......... 105 Finger Moistener in Palm of Hand....... 565 Ink Bottle Holder, Homemade........... 13 Inkstand, “Ferris Wheel” annot Spill PPC Teer TS Te TC CTT ee Te RTE 686 Letter, Folding, Used to Bring Back Coins 232 Line Guide and Copyholder for Typewrit- , ey ere eee? ee ee csheesee R20 EAfter for High DEAWOPGs <i ocscccssestaes 462 Sealer and Permits Printer of Large Ca- DOCHY wcccveccvecveseccvessess 284 Sealer, Envelope, Has Water in H: indle 736 Stamp Affixer, Simple..............+-+06. 91 Stamp Holder Stops Thett..... Pat eae ieee 920 Stationery Cabinet, Improving........... 306 Typewriter Youes in Rolls Save Time..... 860 Typewriter, Romance of, Revealed on Its BO BAMIVOPORED cic cc do 00 besos vases 327 Typewriter Word Counter Utilizes Space re oe i a a ee ee ie ew Rare Eee ee 116 Typewriters Keyboard Arranged Like Linotype Machine 2.2... cccsscccessseses 192 Wastebasket, Fastening to Desk Chair Prevents Upsetting ........ssee0. 479 Wastebasket in Office Desk.............. 272 Oil, Absorbing Lxcess, on Dirt Streets 619 Oil Barrels, Horseshoe Wrench for..... ... 963 Oil Basins, Huge, Dug for Unmarketable Oil 23 Oil Boom in West Recalls Memory of Gold Serer ret sre Tee EOP Oe ee 937 Oil Container, Self-Closing............. 138 Oil, Crankease, Service Station Speci: ilizes s Seer ret were Tern TT Te ORG ere 55 Oil, Crankease, When, Runs Low.. 1S8 Oil Feed for Auto, Automatic.......... 808 Oil Funnel and Container Combined. cee Cn Oil Industry to Break Record This Year.. 77 Cl ee Tee TORRES Gis oss 6 5 8 eons ods 49 Oil Shot by “Gat” Into Auto Under High Pe Ld aan dee a eae whehiwees ea eee e . 507 Oil Spreader to Help Ships in Storm........ 701 Oil Stove, Attaching Caster to.. . . 486

Page 26

26 POPULAR MECHANICS INDEX, Oil Stove Shape of PROMOGIADR. ..0ccccsess 575 Oil Tanker, Ocean Keep Tragic Secret of... 770 Oil Trucks Cannot Explode, So............- 633 Oil Trucks, Lowered Storage Tanks for 4 ES TOP er Ee TT Tee 37 Oil Waste, Auto to Help Solve Heating PO Chane Keene dda RAD ew Oe he 912 Oil Well Bits, Mud Used to Lubricate...... 284 Oil Well Lights, Flaming, a Beacon of og RE ras een eee sy eee 255 Oil Wells, Fighting Fire with Steam Saves. 517 Oller, BMOMOmMAGS BOG. oi snc cccccccsescocess 486 Oiling Automobile Springs...........+.-e.05 950 Oiling Motorcycle Transmission............ 806 Opener, Can, Also Opens Bottles and Fruit ae eed ke ak) ROA Ges heed ee kee aaa ee 268 Operating Table, Horse Hospital a Pe 897 Oranges, Bugs Aid in Growing of, in West. 167 Ore Stamped by Hand in African Wilder- EE Ws sao ad es 8 a eS PE ae we ala es 771 Organ, Giant Pipe, for Cathedral Rocks in BOR TOGRIOME) PAPE, TOR. 066 cassis ccntcues 220 Organ, Giant Pipe, for Cathedral Rocks in Zion National Park, Utaebl.......ccceccaces 38 Organ, Hand, Beggar Plays Phonograph In- | rR ee re toe re irre 889 OVeGR, VROUR, “TOW acs ccc ceeisicrscce 486 Outdoors, Saving the, by H. H. Windsor... 45 Overalls, Bellows in, Keeps Wearer Cool... 282 Ox Team and Stone Wheel Mix Mortar for ESRF errr rea 679 Oxyacetylene Jet Machine Cuts Intricate NI a er's) otk AAS A Ee ee Oe 2 eee ee 778 Oxygen, Acetylene Gas Mixed with, Used as . MOMENEEE Sa seicesenacaccascedsaness 357 Oxygen, Amount of, in Earth’s Atmosphere 329 Oxygen, Conquest of Mount Everest Sought Pn “Sicc teen kde he ee Oi eae an eee ees we 557 Oxygen Tank on Back Used to Save Lives. 170 Oxygen Valves, Hints on Frozen.......... 949 Oyster Shells Bring Rich Crop for Farmers 423 Oysters Attached to Gun Found on Beach... 522 Oysters, Pearls “Planted” in, Detected by Re rere errs 557 Ozone Machine Makes Air Fresh........... 399 Pe TOS. a tcc s ce ntdn sarvesaceess 487 Packer, Carton, Output of, 18,000 Per Day.. 612 ene, DOWN GB GG. o sc saci cieovrsarnee 813 Paddle Wheels, Boat, Act Like Oars on EE Sat eb ebes cbse eeien 000 5008-6) 2 ORES 269 Paddock Latch, Gecure 2... .csssccccscncccsecs 135 Pads, Glass, for Stove Legs............e+.6:. 115 Pageant, Historic “Pony Express,” to be EE. oda hh Rika heehee Walked oan Diwan 75 Paaeeee, Mysticism of the Far East Built an Pail Float Prevents Calf Drinking Too Fast 107 Pe, Di BOONES DIOGO 6c civcnseccwanccses 790 Paint, Brown, Mummies Turned into........ 588 Paint from Tile, Removing................. 945 Ps DEE fg kbd ca edensesesscesecenee 474 Paint, Making a Liquid Tire.............. 625 Paint Remover, New, Also Cleans Cylinders 53 Paint, White on Ship’s Bottom Keeps Bar- ee reer. epee rere 773 “Paint” Woods Colored by Scorching, Mosaic PEE 640605 o0sd Mea aCew eR Saw O44 oe w 8 8% 702 Painted Leather on Walls Takes Place of DS ctcbichicckewvev nd caedbends web's weed 757 Pointing BE: Da 6 wee e die aaness cs eeuece 807 Painting—Court Lady, Japane se Woman Pe BE % NS Sa eee ied Sse decep ites scene 237 Painting Inside of “Conductor Piping... 625 Paints Sea’s Depth, Artist............ee-0. 902 Palace, Flood of Lights Covers............ 884 Palace on Roof Top of Skyscraper......... 920 Palaces, Fire Razes Son of Heaven’s....... 575 Palm for Paper Making Material.......... 40 Pan Combination Makes Three Dishes for Perr ee eee 197 Pan, Dish Holding ay “Sep Raman pape ie 757 Pan Fries Without Odor and Saves Gas..... 234 —. Frying With Grooves Improves Cook- - De KGaA HE ASSRALS ESD DREADED R DCE TH CK ES §21 Pan Solder Prevents Burning. Shin weet be aes 258 Pan Lids, Pulley Made of.............eee08: 976 Pan Set Makes Five Dishes from Three..... 264 Panama’s Torrent Greater Than Niagara... 40 Paper Bags for Covering Automobile....... 684 Paper, Blotting, Made of Pulp.............+. 607 DUCT, WiPOPTOOMe 0 nccc ccc swecnsescceceese 815 Paper for Cleaning Eyeglasses Kept in DET davcaduawceneetba vaghee keteuees see 660 VOLUME XL, 1923. Paper, Hyacinths “Eaten” by Boat Turned DE cb4crberacierdsdeens hee ete tween eee Paper in Rolls for Typewriters Paper Made from Pine Stumps.............. Paper May be Made from Fan Palm. Paper, Method of Pasting, Together ‘With- era eee ae Paper Motion Picture Oe tak cae one neewe kes cnkeneedian nes Paper MOR, WeiGer FOP oo iciccévcncsececes Paper, Stale Photographic, Method of Using Paper, Wall, Painted Leather Takes Place TE ©0460 606566 2022460 B46 CO oe Paper, Wrapping, Name IE Gd ta n'd-S0a oh Reeane We baad we eae o Papers for Pipe Tobacco Ke -ep Bowl Clean. Papier-Maché Replaces Ice in Fresh Fig SEER are rats Papua, Sky Voyagers Greeted as Gods in. Parachute Airman’s Death Recalls His Feats PUPORs, 2 e CUES TOP. ooo. occavcswiwinwses Park, Ball, Carpet Saves, from Flying Hoofs Park, Library in, Lends Visitors Books..... Parks Suggested to Replace City oo Parrots “College” Teaches, How to Talk Pascal, Celebrate Birth of ............cc00. Passenger Airplanes Have Private Cabinets Paste Pot, Empty, Further - apg aes of. Paste Spreader, An Efficient. Pastures, Hen, ‘Back Yard Pathway, Underground Moving, | RE We ican doh en0-da ode es 6 oases Pattern Color Denotes Material Patternmakers, Lesson for............ce.00. Pavement, Rubber Bridge, to Stop Vibration Pawl Spring of Auto Hand Brake.......... Peace, Sahara, Guarded by Aerial Police. Printed on, as it es Peaks of Spain pevenaryueed by Electric Rail- Ml Ach eeeweae ee okies dake weekeuac theses Pear, Prickly, Insect Parasites to Battle, Pest Tre eT TTC Sr Tere OTT rT eee Pear Trees, “Propping” with Twine....... Pearl Divers, Rich, Woman, White, Rule er rer te rr eee eee Pearls “Planted” in Oysters Detected by DP BE, week e Kk nae ee eae dees eeebe wee Pearls, Story About ..... -~ pw Furnish Rival to Coal as Power DEE wet eeatiacd oes Heese eaRd Ss ae aie eee eee Peat Land, “Caterpillar” Tractors Help Till. Peculiar, Missouri, Got Its Name in Peculiar re ae rr rr ee Pedals Means of Driving Bathing Machine. POCO DOG) SOP CORB. vce s ccccccccvseeevde Peg, Tennis, Keeps Net Taut Peg, Tent, Like Corkscrew. ......ccccoceess Pen, Electric, Writes in Gold or Silver...... Pea. a Has Light for Writing in Pen, Guide for Lettering Pencil, Lead, for Spark Plug Testing Pencil, Lighter *) ~ F ere ae Pencil, Magnifier on, for Close Work........ Pencil’s Weight Bends Steel Bar............ Perfume, The More Brilliant Flower the St PO, dc¢acctetenmarsendeecveneeee Perfumes First Used in Religious "Services.. Perfuming Machine for Movie Theaters. Permit Printer and Sealer, Large Capacity Pests in Cotton Fields Boost Arsenic Mines Pests, Insect, Government Keeps Gallery for Perey errr re errr Tre TTT ee Pests, Tractor Exhaust to Kill Rodent. Pests, Wasps Freed to War on Cro Fish as, t ee Rerapepcres to Follow waar ee SL Shak be wk anes Reeds ae ee ban Phonograph, Convenient Step Lever Dthiset. Phonograph Needles Made of Bamboo...... Phonograph Needles, Thorns of Cactus Be- EE. ccttebe sad ceed nedeaen we dns bin ae Phonograph, “Oi Stove Shape of......... Phonograph Records, Using Badly Worn. Phonograph Tone, Increasing Volume of. Phonograph, Vest Pocket, Built Like W atch Photograph Exposure, retciepal Dot Tells How CO TIMMS cocccccscccs Photograph, _—— ere ee re ee ee ee ee ee Ceoeeeereeresesreseeseseeeeeeseeeeeere BT Objects Full Size. J ad alle Photographs, Campfire, How to Take. vuenew 332 505 857 539 889

Page 27

eu esse seee ce 2 CREE amt 2798 ss “\ SMSC Eee Ow erUmelU | es Quewvy we ee SV ssesssooONSww ws wee se eeeeee cs © ov — POPULAR MECHANICS INDEX, VOLUME XL, 1923. 27 togrea ‘ifty Thousand, a Day Work Pipe Organ, Giant, for Cathedral Rocks in e <tr Ay . ey - ate. ae: : conn oe A cenees'e 655 Pion Jational P ark, SG Mcckhed bias wa 220 ,jotographs, Two Tome .......cccsecececes 972 Pipe Organ, Giant, for Cathedral Rocks in otography, Aerial, to Aid Fire Insurance 37 on National Hee +p in wiead aah wee i ‘o SE. gxdn Was os See SRR OC cE ES ORCC b EN pe, Supporting a Long SOGMATBO« cccccce 6 LOSTeDRy, DEOMRREMES. cacecnceseneesessts 472 iy go Undersize, Making Tight one ,otography: Oints With...........6.- see eseeeees wees 137 birds, Kare, Picture Taken of......-.<es-. 371 Pipe Tobacco, Papers for, Keep Bowl Clean 572 Camera “Guns” of Navy Shoot at Sun's Pipe, Tobacco, Rubber Cover for... «eb ae& 609 ee OCTET CET TET TTT CUT ee eee 910 Pipes, Conduit, Rats Pull Wires Through... 764 ‘amera, Huge, “for Life Size Photos....... tae Pipes a Coneeaee | ayeniae. weer rt Camera in Air “Shoots” Toward Floor.... Piping, Conductor, Painting Inside of...... 5 2 Camera Men Risk ‘Their Lives in “Shoot- 004 ro, Band of, Led by Woman Robber 59 img” PICtUre® ...cccccsesscccvcccesecece GE deere ktacsd chee dnessceeee st ae fone eb Camera. ‘lower Car Raises, Above Heads 333 Pistol. How to Make an Arrow... i Soa 976 OF CHOWE cence cvsnceseveseviessccrssees 2iston ng as nusua exibility...... 77 Camera with Two Lenses Gives Depth to 136 ee, Pig ~ Railway ‘Trains. oe MOVICH cc cccccosccccdeecesscveresvcvees aner Converted into Shaper.............. 2s Coma. sg 4 Years Ago, ‘take Pictures 361 on Hottest Flame Known to Aid Study 58s D0 ee SOON Sc ACS en CeCeeetEReee ea Seeks EE 8 8|— ME Vee debe aed oN ban bw Whe Rdeb aan keeles om 5 Comme, Ay ng he mom ——, to Take...... Planets, Star | hex — Course Ae ot Child’s Brain Photographed............+. Plant—Aster Seedlings Die epee 5 Dot of Light Tells Time me Photo Ex- 402 Plant, Cassena, a Delightful Substitute for ‘“ POSUTO weve ese sscrencee sete eeeeereee SE “Macha irae haa hp ae wien ee eS win cee ake emcee 5 Drying Rack for Negatives. TTT TererTrrere 487 Plant Disease, Fight Against, Increases Films, Cut, Using in Plate Holder........ 161 Ce SEL, cca Co cwincuiadibus'svewe bs bead 675 Flash Lamp Avoids Use of Loose Powder 769 pjant Diseases, Discover More ............. 743 rom Effects, Soft, Produced with Small $15 Plant, Fumigating Built for Hastening TAMETA wv aeeeeeces see ceeccrecssencs NG He CE kd tericsansbcsdsins dues 507 Sn a Cloth Over Screen of 360 Plant. Root, Rich Mine of, Yields Paper and | ee ee ee | eS ae ee nt hertne Food ...... TCT Tee eee ee Meteor Caught by Camera in Flight 905 Plant, Wax of, Turned into Varnish......°! 421 Across Sky ............ woes EEE SS Plants, Crossbreeding of................ posoe BAZ z Stale huanpeintsie-get- yee * 144 ome —— Facilitates Growth of Water 798 Oe ) lants, ounde . Sasy ctims oO Germs. ae 279 Pictures of Mina Without Camera....... 267 Plaster Ceilings, Loose, Repairing......... 32 PO ee Se Saas See Se ee ae, Glass Shelves Made of Broken Wind- tne tad Sid Oe eee SO ee PE Gkhiwantaradinws he heen hab xiemie dae 6 4 7 printing with Uneven Density Negatives 154 Plates, Mormon Church, Arouse Interest.... 66 Simple Negative Rack....-....... no ia +s 50 971 Plates. Wire Gauge Attachment for....... 634 i. fone for Camera Tripod. 4b Platform, Lift, Dumps Dumpless Trucks... 72 Two Tone Photographs wo eetee ene ecees 972 me te ao Also Pulverizes Soil, by Frank ose fave Lengths Photographed.......-..... 95 pm PIGS way... see seeeeseaee Wale nal Swe) eine.» Writing Sent Over Wire by Photo Process 351 oo, gf 1 Rewer a 2 oN. Motor Car to sla Phatemese, Cagamtit, Say meeting Agen ap tedipethsanem papa pieemmae papi 775 piysicians Find Cure for Paresial,..1111) 361 Plug, Light, with Ree Containing’ Wire: aM Piano, 25 Manufacturers Join to Make...... 100 Plumber, Copper Pips of Ancient geet ae bed 928 Piano, Banjo Effect Produced on........... 316 Plumbing, Essay on, Prize Offered for Best 653 ee pe Broadcast by rayon Micro- 587 Pocket Scale Saves Farmer's Time by Doing eee Me” See ee " ihaihete unde WEEE Asctwdbkabmetheidbnkaehonse Cee a Sent by Radio “Painted” on 925 Pocket, Vest, Range Finder Aid to Photog- " co af Wild Tifa GG. * et EE fetta ig ‘ PE Neecasen cebateeand ste nked ao 0dbs0 561 Rpt edn Huge, of Wild Life, ‘96- Feet Long. - 238 Pockets, Nonsinkable Bathing Suit Has Air. 515 ihadb sandew Kole % “7 : J Picture toaine ee Communion. 260, o33 eee “se. te yo ge - Pictures o ood, Painting, W Jarnish.. 37 Ss ’ , . = . ies . <n : De s6hs cite e deb eee CRSA ae ee anes 607 Pine oa fee ‘Geavty Gel te. 37 Poison Cups to Drive Evil Spirits Away... 605 ; ping, * abet Poison Gas Test Made in Three Minutes.... 165 Buildings. Ground with, to Salvage 106 Poison, Toadstool, Cure for, Sought in Serum 444 Buildings ..- +. -.++ ever. eS Poisonous, No Insect Bites...............5. 505 P mom fretning. to poseenties wort. HA Pole, Bt Fareed Folds into, Serves as Bat- a3 io? : - 4 oa RO OE—EE Ener ee eee Pig 4 tongs #4 Watches a A go “ rime oy Poles, Concrete, Cast in Place by Machine.. 62 Se gllg aa gp, Bigg tad ay RA — 278 Poles, Clocks Instead of, Tell When to Shave 445 Pilots, Air Test for Airplane...... etn hie, renee Fd Elastic Concrete Bend Without ess : 4 , able aah Bre we IS hare oi eecthnh a's dicta ae a) sic i atten a eo a 5 , 7 — hopepyten hao Leto 890 Police, ‘Aerial, Guard Peace on Sahara. wea 344 Pilgrims, Juggernaut’s Wheels Again Moved | Bollce’ Armor, Bullet Proof, Adopted in Paris 426 WW ccnaee pat cure ks aces enn entd dee one eee = , _ Piling, Ocean Currents ‘Damage, and Wreck - ee Pageant, en to be 15 SOE TOMER £6i dbs cécnscctccncscecss P Ged Game on Cie eee 937 Pillows, Thousands of Geese Killed for..... 555 opper, and Crank on COFn..... sseecesccs ‘ Pilot Light, Auto, Turns with Steering at Popular Mechanics Records of a he Ago, eis BON ce ce OSHOHOOOS CES CHS ETELerereseLeSS a _ a = . Pin Setter, An Easily Made poate daeRbeea as o6e Po eeetinn of New York City and Its wae Pp ine ar Pu s il ee aie ine es a ed 56 Ce a Porcelain, Clay Washed to Make........... 654 Fine Stumpe, Paper Made from... .. . eaten. - or Porch Flower Boxes, How to Make......... 153 Fins, Cross Made of, to epee Jewels.. 538 Porcm Steps, ManmGrail fOF. 2... cscccscccsces 977 Aes er "wach! by wen | in On ire 826 porthole Lenses, Ship, Sandblast Cuts... ..- 94 by’ gpeighanetommppiretbonenet tau n One Op 63 Portraits, Woods Colored by Scorching ome dine tam tokio Oeemtchene SE | SN oan aes ka de bales « oswea ts Five, aunt Shaped, for Outdoor eens: « et Ports, Sailors Fear Perils of, More than Sea 432 pe, Copper, of Ancient Plumber Found. 92 - Pipe Covering, Protecting 293 Post Office Department: Pipe etapa Tool for ae aie see : 949 Frauds Practiced in the Mails........... 685 Pipe, Flexible, Joint, Will Not Leak........ 407 ee oe ae insag tre Pear ndieteings * 773 Pipe, First, Shown in London.............. 581 Letter Machine Sorts Directly into Bags.. 174 Pipe Fitter’s Vise Support......ceccccccsess 461 Mail, Air, Night, with the United States 655 Pipe Forced Up from Pond by Pressure..... 56 Mail Airplanes, Liners to Carry.......... 34 Pipe, Iron, Cement for Closing Leaks in.... 781 Mail Box Assures Safety and Privacy.... 116 Pipe Line Hangers, Tightening............. 298 Mail Boxes, War Mines Turned into..... 775

Page 28

28 POPULAR MECHANICS INDEX, VOLUME XL, 1923

Post Office Department: (Continued) Pump, Fire, Run by Gas Motor............ 937 lit Mail Service, Airplane, Across the Conti- Pump, One-Man, Used to Fight Forest Fires 843 \m | EEC LCR TTL TT ee eee 58 Pump, Small merorieit Uses Elastic Ring lide Mail Record, Airplane, Five Billion Miles 65 NR i kee aR ETk tio enw ad tae ee 285 dit mantis Bar Imported Bees. ... sc sccscvcenss 526 Pumps, Man Operated, “Still Used in India. 175 dit Stamps, U. S. 20-Cent, to Bear Scene at Punch and Chisel — i ie sa a Mia Aa ew lea ge wee 942 ‘ SS Sear eee eee 53 Punch Press, Safety Gauge for........ ~. 629 badic 6,000,000 Pounds of Mail Handled in Day 243 Punch, Shear and Riveter, Combination. 950 tea dic a ee eee ere a 652 Punch, V ise, Has I -owerful Leverage . 939 ° ri Postal Permit Printer and Sealer, Large Ca- Punching and Cutting, Holding Be Its for. vow S56 , ; SE ible ye aa eb aceon ao eee SP ee 284 Pupils, Number of, Enrolling in Schools.... 935 : POMOC, TOEOET Pat Oh cc ivecc dee cidsiwvesioneve S70 Se Ee” = CTA s 6 i. a's 5b dn ses cbaonseaeane 174 i Posts, Concrete, Attaching Wire to........ 300 RE ON ase 439, 603, 767, 9245 WN « Posts Quickly Detachable Binding.......... 473 Pyramid, Mexican, Rich Relics Found in... 35 Radi Posts, Wooden, Method of Supporting, on ri CONCTECS PIOCOTS 2. cv cccvesveasencsscveres 953 Quarrying Carrara Marble...............6. 923 li Potash and Fuel, Molasses Yields.......... 777 Queen Building Dollhouse.............. ae ' Potash, Dynamite Breaks Up, on Ship...... 55 Radi rotate Grater Algo Slices... 4 : Pulleys, Small “V,"’ Increasing Diameter of. 616 Radio ne ee weve apan gt aaeae * R : ades st set : f Pullman, Aerial, for Air or Railway Service 251 — * ag ae a ee wae Ra “Pullman” of Highway Has Comforts of oy Improved ......... | Seated tagger lars dai dei aed od a ORR hi catscid es Sbauvecndecadsaeemehaes 698 Radio, Mystery, Stops Line of Autos. ao 195 Ra Pulp, Blotting Paper Made of.............. 607 Radio, Naval, Controlled by Phone Switch- | | Ra Pulp Mills. Waste “Liquor” of. Turned into. 885 board a con k See L Pump, Automobile, for Fire Fighting...... 245 Radio Noises Stopped Before Reac hing Ears 608 Ra CY CIS a ag un a A ave Gore hae & eee 157 Radio on Motorcycle Used to Catch Bandits 199 Ra PN Senet, TOMNINS on 6c 20es iiabee ences eon 813 tadio on Top of Alps to Give Wider Range 17?

Page 29

POPULAR MECHAN iio on Walking Chair Keeps’ Baby \mused dio Outfits, Rheostat to Fit All Tubes for dio-Panel Bushings from Valve Stems. dio Piants, Six, Vianned for Canada..... dio—Plug-Type Aerial Ground Switch.. Radio Ray COmterele BOG. ods cccccccscessc% jiadio Receiver Held on Kar Without Head riGigs “cach vac ca ecard ee hinss Boek wa ward ke ben ltandio Receivers, Increasing Wave Length by BT. Da TRPIGCEM cn sce ne cenaeae iss scces io Secrecy Gained by. “Scrambling W ofG acces trtsavewsnos uth cnne ease eeee liidio Set, Hollow Log is, of Wild Jungle FIBS covcvusesriasrcesesesereswnes Piessaaea fio Signals of Standard Frequency Begun livdio Speeds Up Taking of Motion Pictures itudio Spider Web Coil, Novel Mounting for tadio Station, Camels Carry Machinery 2,000 Milee GO ciceckas ctusna anaes kaa ROSS eee bes Radio Storage Batteries, Care of............ Wind Dynamo Mast Used as , of Metallic Sound dio Support, Tones, Mica Clears hadlo Radio Tuibet, Gavia. oc cceccesnccsecvssnes hadio Violations Detected by Wireless Auto ttadiophone, Talking Through Sea Easy Wt anacddacd eae ivinhbe eae d.bRnbae ways Rtadiophones Page Guests in Hotel........ iiios, Hundreds of, Used to Broadcast WORE: cc cacksa dene ds eee ee eeu tak s ltadiotelephoning, Improved Telegraph Code RIGS. idee dnc idnwand eb desde dees sankeeetaee Radius, BGP Bb E608 OL. asacaescccsacancess Radium Rays for Tumors Does Not Harm Si.) WRAP Seer re rere reer err wire ee Radium Treatments, Cancer Not Yielding to RAGORIGR “MINES 6. ck xc cewek eaens Fe hawt bee Rafter Design for Semimonitor Laying POUGE “cas scesssdbhiatanes H4bdeb au cues cé ee ifts, Crude in Tropical Wilds............. Rail, Carrying a, on a Handcar.......c-ssess Rail, Gold, from Spot where President Hard- i’ fl: BPP rroyT ys Carre er re ret rer. re ee Railroad Car Inspectors’ Tack Hammer and FRI | 5:h:600 5% CRESS EN REO eee ee Railroad Cars, Four Mammoth = Girders Pr errr Pe eer eee Railroad Cattle Guard, Concrete, Can't Burn OF RN i 66 Roe Kee bees ee eee Railroad, Cornice Cleaning, on Top of Build- RR ee ee rt Pee Aer eee Railroad Crossings, Maze of Walls Slows RUGS OE igh ee vc eke Wei 6 es. 5e'c wee we Raliread Depot om WROG8.« i ccsesecceccacs Railroad, Electric, Birthday of, Forty Years Ago Railroad Engine Carried on OE Sega Railroad Engine Crews Get Brake Tank Air | a a Pe ee Or eee eee Railroad Engine, Ready to Run on Board PE atic dns ete Ran Oa ed heme eek ee wate oes Railroad Fire Fighting on the Right-of- WE bis cated band ean dese eee eats hee Railroad—Gasoline Motor Train Designed to Replace Steam Locomotives.............. Railroad Jack Does Duties of Switch Engine Railroad Lantern Used as Stove............ Railroad Locomotive, Monster, Pivots on gc ko: Re eee oe eee Railroad Locomotive, Runaway “Dives” ce a re ee es — Locomotive, Turbine, Burns Less CAE ibis ounce 4 ed ee ae yk es ale a kaa Railroad Mileage, Forty Percent of World's, >... a SE SR Oe eerie Railroad, Monorail, Taps Wealth of Death Valley, by John Anson Ford.............. ‘ailroad Safety Arm Aids Delivery of T CTGere: sieve tailroad iro Sand ‘Sprinkle rs in India Ride on Engines TREO Ce er ee FETE eee TT eee ‘ailroad Sleeping Coach Also Attaches to RE. aah bcc Kak kasadomka eebabaekas Railroad Station, Ocean Currents Wreck. Railroad Train, A Name for a, Prize offe red th EP EP ctor cae pa Railroad Train, Carring on a Conversation Cee Err ee ee eee Railroad Train Runs on Single Track...... Railroad Train Upset When Heavy Drum I NS cl a wha atts Oil a kc ara w oo a6 Railroad Trains Advertise Communism. .522, Railroad Trains, Caterpillars Stop......... ICS 162 10 232 831 36 IN DEX, VOLUME XL, 1923. Railroad Trains, Gen. Custer’s Statue Dam- EY cn oi wid ob ab CD COE abe a oon eie ee Railroad ‘Trains, Pictures on, Advertise Ci wd oho beihen Mehwene Ce eaaee Railroad ‘Trestle Guarded Over Great Salt SED, SET SR Sid a eke Ad ON Wa ee bas aa Railroad Water buffer, Underground, Stops n,n Ws <i6s bebe sin b.cee ane wes Pen. SO OC CEON os edccwucnsesaneeoeee Railroad Wreck, Particle of Dust Causes Railroads, English, Combine into Four Sys- tems Electric, Peaks of Spain Conquered | PRE ery Pere cr eee eer ere Railway Electric, Solves Space Problem. Railway Track Model Shows How to Avoid a Se er eer a eee ee Railway, Railway Tracks, Mounted Dummy boy Pe Se is encase en sauw eens ea saeae’ Railways, Millions Being Spent by, to Meet SEO ecNeehw eke aes dv thes ween Rain Heavier in Afternoons............ Pea Rain Machine for Gardens............... ° Rain, River Swelled by, Reverses Its F low tainbow Colors Made on Buttertly Farm.... maincoats of Graen Fibers... cscccccscncscs Rainproof Coats Made of Grass Fibers. Rake, Leaf, Attachment for...........ccce0. Rake, Odd Looking, Used like Broom....... Rake, Two Rows of Teeth on, Prevents EM a as diss Saad an OS Oe Ranch, Silver Foxes Bred on, to Obtain Rich Pa usa warn a ae Peeks keke lab ae bea hae ean Range Finder, Using Camera Finder as. ‘ Range Finder, Vest Pocket, Aid to Photog- PE, ST Geskr aac dee ce cas bekddunudecedce Range Finders from Guns Used as Telescope Range, Gas, Deadly Carbon Monoxide Gas PC cheeien ca cdedawsed ae Wes beees ee ao ies BS Se ee i ES Soc tae gaead hae ee wR eS © wien i ee OIRO, hs tn a wesc dae s one Os Rat Trap Throws Rat from Trap....... ‘ Ratchet Device Attaches to Screwdriver.... ee Oe PENON: Dib ccs bese ce ccs cnee os Rats Hitched to String Pull Wires Through CE 46. San ek ch eSAL Oe WERES Dean MAN sees aa Russia Overrun by, Buying oland's 0 RA ea ee ee ee en ere ere Rattlesnakes, Idaho, Shipped to Amsterdam, EG Ee Oe Se ae ere ee er Ray, Secret, Damages Planes............... fay That Kills Tumors Does Not Harm Brain Ray to Overcome Gravity is Sought........ Rays, Light, Cure for Burns..............-. Rays, Light, Selenium, Carry Voice Through ak 0 RA ee Rays, Pearls “Planted” in Oysters Detected i SE Ary eee rr rari Razor and Shears Heavier Than Their sree sha ba hk ae ae 6 ae oe We Razor Blade Sharpener, Safety imitates og TS rere rer es Reamer, Center Drill and, Has Inserted DE Nwedvined eaee uk Sa wee eee oes Reboring Fixture, for Garage, by J. \ eee ee Pe peng eee ot Receiver, Radio, Held on Ear without He: id NE, f ca'dr Salle’ wia wwe ele ay a ee Ok A oh ae teceivers, Increasing Wave Length of, by F. SS RAR rrr ee re: Record, Laying, Egg Counter on Hen’s Back EE, oir den8 S84 eb6bRE wha ae aes ueae Recorded, Accurately, Emotions Tested by PE.. niwatn a aed Meee RRs eb aw ae on Records, Phonograph, Using Badly Worn Records, Popular Mechanics, of 20 Years ME Atitwesa xe eA SeOad se waded 176, 668, S58, Red-Cross First-Aid Kit Built Like Knap- EE cai eek nok Soe me eA aa ae be ad Ae ool 3 ¥ Reduction Gear, Giant, Used on U. S. Navy UE el aia oie ot Sees OE ed @ del Bn aa a Reflector, Auto Headlight, for Seeing Around oo, Bt SN ee ae Homemade... Refrigerator, Iceless Auto, Keeps Food ¢ ‘ool Refrigerator, Swinging, Iceless, for Window Refuel Airplane in Mid-Air Through Rubber Refrigerating Machine, Dn ACas 6 in Sena tea e dS kee Refueling Seaplanes Through Air IP ump. tegulator, Auto Window, Uses Gears... Relativity, Einstein's Theory of, Sticks Used 4b. BRAS or eee Relay Instrument Reduces Relic—Adding Machine Inca Tomb ‘ablegram Time rea arthed in Old 197

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30 POPULAR MECHANICS INDEX, Relic, Mormon Castle Kept as Frontier- ek oi. k- a. ea Oe AR ea We as elon 407 Relic of Old Custom, Visiting Card, Passing | Pe are ree rer ers © een ee 514 Relics, Heathen, Shrine of Stone Age Yields 499 Relics of Washington in Masonic Memorial, by Biamsiiion MM. Wicet...«iccosocctcvicvecse 12 Relics, Rich, Found in Mexican Pyramid.... 36 Religion, Church on Wheels Carries, to TROMMMEGEE: 346cc i 0esdndsawdbedeekebaeeenee 527 Remedies, Odd, Found in Old Book........ 556 Remover, New Paint, Cleans Cylinders..... 53 TROMARTSE. BOG TWO ST s Oe oe dee aw RD Be 44: ee oS EE ere er et ee 291 Sand and Pebbles, Clean, for Concrete Work 2% Sand-blast Cuts Ship Porthole Lenses...... 9 Sand-blast Dust Used for Covering New As- phalt 35

Scoo Secor Ss or Secor Dh Scor Sera Scra Sera Scra Serge Sera acre Sere Sere Scre Sere Sere FE Sere Sere Sore

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. n 8 * hs

POPULAR MECHANICS INDEX, , | SPB GRSRRSRrI Ra - rats” >, ee 377 Ship “Dolphin” in Junk Heap ............. 580 Ship. Dynamite Breaks Up Potash Cargo on 56 Ship—Fog Forces, to Take Voyage to Europe 27

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es to POPULAR Ship Found on Big TceBete 3... ciss cecaceas Ship, Frame Built on Hull to Right Capsized Ship—-Leviathan of Inland Waters Launched Ship Lights “Rule of the Road” at Sea Gov- SE ras ere Ship “Majestic” Draws Waterfront Crowds.. Ship, Mast, Improved, Gives More Room on Deck Ceoeeereeeeseesreeesereeseseeeseseseseeses Ship Model, Cut from Log with Jackknife.. Ship, Movement of, at Sea, Studied by Ma- EN. w'sihib sn Woo ieee hs Read ae eee Ge eet ciel ad Baip, Melsou's to Ball AGAIN b2s abu eb ae bake eee ees Soap Chip Cutter, Simple Soap in Dishes Nozzle Spray Aids in Soap Mixed with Steel Wool for Scouring IID oid bw no ow 0 Wks wk wee ae Soapstone, Blowing, Through Conduit..... Socket and Tassel Combined for Lamp...... Socket, Electric Light, Has Six Changes of 0k Gioia a Scie eee ae wha es ahah lw be aa ok BeGium Carponate, Test for ...6cienvaeverve Soil Dragging, Two Rows of Teeth on Rake PE, CU ve cee sda tke adie ke es See ae G Solder Buttons, Blowterches on Turntable.. BOGering GB BVGOMen Vile. ..0.6ssisstiswcc sews. i Se ee ee Soldering with Alcohol Lamp Soldiers’ Obstacle Race Tests Endurance... Solvent, New, Removes Paint and Cleans RE bs aaa Cee Oho 64 elak as meee es 5 Derting SERCMING, TCO ic ciccrccscdadvssces “Soul Searcher” Gets Truth from Criminal dchesavedwetad edie ke tenes aetaanwaee Sound and Light Wave Lengths Photo- Se eee eer ery rei ee een eer re Space, Save, Auto Chains in Footrest...... Spade Attachment Saves Shoes..... Spader, Motor Driven, Replaces Plow...... Spark Plug, Double Head, Cleans Itself Spark Plug Gaps, Adjusting................ Spark Plug Testing, Lead Pencil for........ Sparking, Preventing Bell Contacts from... Sparks Caught in Water Prevent Forest PE vevetua eed ade s NAb AuNiOn. oc. aiee eee eee Sparrows, Making, Useful... cccccosesees “Speak Glove” Enables Deaf and Dumb to A” sb v6 ates Ae DadO a aswascsadakenmess Spectacles Have Springs for Holding Jew- Se . act ante dee ivan acnate ewe eeeee Speed, Science Answers Cry for Greater.... Spider Web Coil, Novel Mounting for.... Spike Pulling Tool, Handy.........s..eee: Spillways for Miniature Dams........... ai Spin Thread by Hand on Ancient Wheel...

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POPULAR MECHANICS INDEX, VOLUME XL, 1923. 33 eas BE e ‘ of Church Pulled Down by Truck Steam Auto Busses in Early '30s in England 253

vo jee 76 th, WEG oc eee seas nserakeetecstcevevas 660 Steam boiler, New, Carries Enormous t’res- Vay ~.ritism—Spirit Hands, “Ectoplasm,” and DEG chee eeee rede ihin netbeans anata esanedaae 778 ; 76 nT er eer ee ee oe 28 Steam, F ighting Fire with, Saves Oil Wells. 517 se~ 903 . 566 Steeple, Church, lulled Down by Truck with cae Bed ‘addle Tennis Vlayed in Any Size Court.. 447 UIE, AA Stinks crate iii de tas inte @ wo Give maid oe web ele 660 { Rolling Dice by Airplane, Latest Sport... 507 Steering Wheel, Upholster ing N: tils Improve 647 swimming Lessons Given Over Radio..... 335 Stepiadder, Simple and Useful Clamp for... 621 “wimming Gloves with Webs Like a Steps, Handrail for Porch.... 7 Par re ee SL. Pee eee ee ce ee ee 443 Steps, Retreading, with Coners epee ; 802 Vell Spotlight with Side Rays for Night Driving 570 Sticks Used to Test Einstein's Theory...... 202 vase OSS spray, Bathtub, Turns Tub Into Shower Still, Laboratory, Experimental Work Aided lers 632 BOM 60240 bd ewhwees indtasceaew een ee Reese es 228 Oe Sadhu r dans 6566 eae ea gaa ae 8 Ob e'6 Se ae 940 ‘ity <pray, Nozzle, Soap in, Aids in Washing Stirrer, Wind Power Milk.......... wy dwg a a ", O59 POE can scak cede dkathsatas av unas Rae ae 526 Stock, Practical Salt Box for thas i <e rm Spreader, Paste, an Efficient.......... 00-6. 617 Stockyards, Western, Follow Chicago's as to spreader, Rim, for Changing Tires......... EY Sk Kew cw aca Ae oan bee Be aa eh an a ae 112 118 <preader, Trimming, for Upholsterers....... Stoker, Electric, F ire Fed Puts Ashes in 776 Spring Fan Belt, Coupling for............. ‘ Sel i seh Sits Cin ms Mi a Oke ON eee Wea oe ss wae ‘ion Spring for Auto Hand Brake PAWS 6 scinccene Bee Stone C utting NE a ee eet 940 xT; Spring, Hidden Ear Muffs Hold Hat on with 341 Stone Entrances, Rustic, for New Subdivi- oF Spring Scales, Computing Chart for......... 795 NN cei a at 6 id el ge a a ate ee 83 a4- Springboard, Making a Diving ............. 478 Stones—Diamonds, World’ s Stock of. - 105 Any Springs in Rubber Heels Make Walking Stop, Automatic Bobbin, for Cotton Spinners 86 — pe ARISE cece ec vacceceassewesseesresererseeces . 606 Stop Lever, Convenient, for Phonograph.... 309 4p Springs Lubricating Automobilt ia ice a ark <a 626 Stop Signal, Auto, Controlled by Buttons on awe ee Springs, Oiling Automobile iat saci ele OM 950 Sn EE <6 het G pecwh na ad bw dee eh aes 124 ung . Springs on Jewelers Lens Hold it on Spec- Stops, Hinge, for Casement Windows....... 142 aoe ae COG Sink accweye Lee aloe DAR e Mined aa toe 389 Storage Batteries, Radio, Care of, by F. L Ins P Sprinkler Guard, AE: EE eR re 461 STURN: 6.6 & 6.0% ; ; ce ans r i. 973 401 Square, Cigar Box OLS NPS“ et AE a aR: 975 Storage Battery Box Straps, How to Make. 317 494 Square, Combination, Has Unusual Features 939 Storage Batte ry, Ceeeaeas Generator ios OFF Square Measures Angles for Workers...... 612 When, is Removed... as . 814 ; of squares, Locating, on Shaft Ends.......... 468 Storage Battery Markers, Thumbtacks Used bce, BOD Stack, Split, Tied Together with Iron Bands 602 OR a th shs ode we aed wiaeeee ho ekae Gcsmes 136 eee SOF Stage, Snow Box for Amateur.............. 961 Storage Battery, Testing for Water......... 302 ake Stage Scenery, Aluminum, Easily Erased... 275 Store Window Lighting Arrangem nt. ; 127 seee BOG Stagwecoaches and Camels Used in Austria... 197 Stove and Ice Box Built in tchen.., 355 le.. 678 Stairs, Winding, Gate and, Lead Up to Gar- Stove and Table, Folding, for Small S13 GO Bike ic ekedesaskaaeas ate qrektand a ee Tedoe 440 Kitchen . OR ASE I ge ae ; ..212 160 Stamp Affixer, Simple Weer TT ere Cre re 91 Stove, Boltless Folding, for Campers. : . 445 471 Stamp Exhibit in London..............+4+. 442 Stove, Camp Folding, Cooks Meal for Ten boo. 265 Stamp, Rare, Found in Italy After Long POCROMS. 66 dusts LbeWe Aba OAS bd ard oe oe 395 ans aera eee ee enw l end tektites ea aars 174 Stove, Camp, Gasoline Fl atiron Used as.... 145 eee Stamp, U. S., 20-Cent, to Bear Scene at Stove, Camp, Serviceable .... C14 OH Deuns 173 fete See Ca: GENO og. x 6:6 aca cdnw arene SiG eser se nkee 63 Stove, Drying Rack for....... . arene 969 inal Stamping Tags Quic kly and Neatly......... 956 Stove, Electric, Cuts Off Heat When Food jnwe 0 Stamps, Forests Turned Into.......... ee s Cooked... A etait alarm teat tern tlin ate 6 ecm lee »to- ‘tamps. Fortune in, Proved Forgeries by Stove, Exhaust Gas, for Tourist.. 970 ' EXPertsS .ccccsccccvcsacesesessscesesesces 738 Stove, Gas, Deadly Carbon Monoxide (jas oe ee Stamps Freak Bring High Prices at Auction 73 POWER: 6 céts ceed. ok-0ue) coke ene a8 6 ‘ . 326 earas t Stand Assembly, for Auto Axle......... eos S28 Stove Leg Cuns Glass ‘ 115 4 stand for Light Testing Work............. 952 Stove, Oil, Attaching Caster to............. 486 4 904 Stand for WO FOGG. 6. cc ctceticcccccnen 141 Stove, Oil. Shape of Phonograph a8 .. B75 ita. 920 Stand: Blawmdy Waste. «oss vccncesesscasses 640 Stove, Railroad Lantern Used as.. ~» 162 rhehs ai iples, Wire Furring, Eliminates Wood Stove, Tiny, Heated with Canned Alcohol 369 -. ‘ of ' CRO 5a 440 std eve ters baate beets seins ene 60 Stove, Usine a Gas Heater as.. . €39 sae Star-Finder Traces Course of Pianets...... 37 Stovepine, Kitehon, Weed as Warming Oven °°5 rest stars, Shower of “Shooting” Gather in Com- “‘vrgirhtener, Wire Fence........+. cocecees 631 + ‘ ets Path ......++0 Tere rt) tee - 679 Strainer, Jelly Bag ......... HRS 16's BOS tartan "TSOUMNOOE: «ois vce bc cnws wee hesun wanes 816 Strainer, Jelly, Fits Pim of Drip Pan.. , 753 » to ' ation, Railroad, on Wheels Moved by Lo- Strans, Automobile Door. Improving .. 473 »oe- B45 COMOTIVE 2... ccseccrcvesseres ii ewnd o's o9.dn - 494 Straps on Stens of Auto Keep Luggace Safe 348 ew- — Stationery Cabinet, Improving ........+.+.. 306 Stream Erosion. Preventing ..... is aie Se pees 39 tatue, General Custer’s, Damaged by Street Beautified with Italian Cascade...... 107 pee. 499 TOS. so cud éavictarn eeehemde sha eee he @e0.8 6.4 72 Street Car, Trackless to Run on City ea tatue—Mystie Figure of Buddha. AES so SS Streets . ew Treeree re Ty : 90 bee, a tatue. Rare Solid IVOry ...ccccesescecs na ee Street Car Trouble Reports by Radio and soe tatue Shows French Gratitude to U. S..... 2%5 Trolley Wire .......cssccersessecsvssvees 111 hie we statue, Tree's Trunk Harbors Indian...... « Ven Street Car Window Wiper Aids Motormen. - 396

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34 POPULAR MECHANICS Street Car Wrecks Big Building When IS Oar eee 198 Street Cars, Automobile Ground Between. 519 Street Cars LBoarded While in Motion....... 768 Street Cars, Noiseless, for Twin Cities..... 57 Street Cars, Two Coach, Run on Three Co!) err ery res Te ere re ee Ti ee re 225 Street Directory on Lamp Post Is Handy SE £55 dhe i Dees Keb assess abana eden ee 186 Street, Five “Hairpin’’ Bends in, in Single RE abr ¢rcbe seabed bacebececs scenes beaes 80 Street Lights Halt Crime...............e06. 28u Street Pavement, Air Hammer for Breaking 265 Streets, One Way, Sor CRICKEO...c0cccrvce 678 Streets, Vibrating Machine Used to Smooth RR Peer ere rer ert eee 895 Stretcher, Novel Wee WO cc ccavisswcsee 616 BIPOtOMOr, Witte WOMCE. 2c ccecccerssvvcescs ° ‘969 Stretcher, Wire, Powerful One Man......... 450 String Winder, Champion .............. 762 Strings, Gut, for Rackets Polished by Ma- OND: obs secede ender be eehetnsaeeeeee teehee 450 Stucco Lath, Wire and Poultry Netting for.. 303 Stucco Work, Wire Furring Staples for.... 60 Studio, Stone Age Art, Discovered.......... 843 Studs and Bolts, Safety Cut in.............. 943 Studs, Corner, for Frame Houses.......... 623 Stuffing Tool, Automobile Upholsterer’s..... 632 Stump Pulling, Huge Machine for......... 758 Stumps, Method of Pulling................. 958 Stumps, Pine, Paper Made from............ 107 Subdivision Entrances, Rustic Stone.. 83 Submarine Hull, Water in, Traps Crew. 759 Submarines, Japanese, Make Warm Water PED weacndhinwse hs pees te tee ew naw ae 98 Submarine, Progress of the..............+6- 176 Submarine, Secret of, Revealed by Camera. 517 Submarine, World’s Largest, Launched Se- PE . -setk bathe ean Gas ae meee ed Maem wie 201 Subway Change Giving Machines for London PE Sc etn she kane SRL L Se Os ehe when Se hae 16 Subway Model Aids in Handling Jams..... 16 Suede Shoe Brush Picks Up Nap............ 198 Sugar Alcohol Runs Engine on Hawaiian Re eer rere ere rr 586 Sugar Cane, Ants Help Bugs Destroy....... 171 Sugar, Diamonds Made from................ 553 Sugar, More Expensive Than Jewels....... 526 Sugar-Soaked Sponge Used to Kill Ants.... 350 Suicides, 8,000, in Germany Last Year...... 396 SO —e ree 833 aa Life Saving, to Keep Eight Persons 49 eeoeeeee eee eee eee eesseeseeseeeseeseseeese ‘ Suit, W ork, Has Bellows to Keep Wearer {gta ssf uesetta. eager BY aa Toe Ma aE et 282 Oe ns bbe wath ob 6a alee a eee 467 BOM MAYS @ Cure few Tiss «oc ccccoccsncessses 567 Sun, Ten Degree Change in, Would End All De bites s eos eb ees Wins aeee sak oka a 506 Sun, Tickless Watch Minus Hands Takes I CE ok woh nnd dea g he ede Mun ees 849 Sundial, Lens on, Shows Wonders of Nature 262 Sun's Eclipse, Motion Pictures Show...... 694 Sun’s Eclipse, Photographic “Guns” of Navy 2 Sod wee eee we Oe CORN Ons ths ceed ene ee 910 Sun’s Rays Make Alarm Clock of Cannon.. 917 Sunshine, Canned, for Heat..............06. 831 Superstitions of Sea Defy Age of Reason... 851 Supports for Irregular Work in Machine i. PPP errr eer er ae Perens eer 782 Surgeon of Prehistoric Age Worked with DR NO sie okie kg ash A ae SS We ho ewe ee 745 Survey, Aerial, of Alaska to be Made by ne, BO ner ee ee ree 248 Surveys, Cloudy Days Best ih wake nme 72 Sutherland, Sidney McNeill: When Banditry and Mechanics Conspired. 508 Swimmers, Air Jacket AidS...........ee0e8. 605 Swimming, Fish Board, Latest Water Sport 229 Swimming Gloves with Webs Like Duck’s | SREP RS ere re eee eee 443 Swimming Lessons Given Boys by Wire- a St ee re eee 325 Swimming Pool Warmed by Heating Plant. 404 Swimming Pool Water, Nature Heats...... 9 Swing, High Chair Converted Into.......... 395 Switch Engine, Motor Wheels Do Work of.. 440 Switch, Improvised Ground, for Radio...... 308 Switch, Plug-Type Aerial Ground..........- 478 Switchboard, Telephone, Naval Radio Con- UE be o8S Sas a are 90.9 be Ae ad eee ee 259 Switches, Push Button, Making Water Tight 300 Table and Chair, Folding, for Campers..... 166 Table and Chair, Folding, Occupy Little DE haved ONES On ee eee Ree eS eae ie 229 INDEX, VOLUME XL, 1923. Table and Seats, Vanishing, in Kitchen..... Yable and Stove, Folding, for Small PEE. ccvawsGesncseekbacesaseubee samen Table, Bath Tub, Safety, Has Dressing, Top 5 oe Extension, Concealed in hg: Room abin >: ae Table of ‘13, 540 Pieces of W ood. edb awueeee Table Top, Bins Under, Save Bending. ade Table, Vanishing Chair Folds Underneath. Table, Welding and Cutting, Homemade... Table, Writing Desk Convertible Into....... vy Pr eee rere re Tack Hammer and Journal Hook, Car In- PORE kins ons 6 sd ee a dRe eben cae uReEEES Tacks—Thumbtacks, Emergency .......... Tacks—Thumbtacks Used as Battery Mark- i eee Pree err iirrr rete Tags, Stamping. “Quickly and Neatly....... Tail Centers, Beeswax as Lubricant for.. Tail Light, Red Mirror on Auto Serves as... Tailstock Clamp, Lathe, Improving........ Tank Gauge, Gasoline, Luminous Tip for.. Tank, Gigantic Gas, Moved with Hand Jacks Tank, Heavy, Upsets Train When it Rolls Pe. GE Seskacinceheeerundeabe eau hay eae kee Tank, Hydrogen, for Toy Balloons ......... Tank in Anthill Keeps Water Cool........ Tank, Lowering, Novel Method of, into Pit Tanklike Automobile Wins Race............ Tanks, Heavy Gas, Carried on Two Wheeled DEE Aniaced bans vaareveet desde dee beleaas Tanks, Lowered Storage, for Draining Oil oo eS erry tT er eer Pree Tanning Process, Vacuum, for Leather...... Tap Guide, Simple, for Round Work....... i PM Min cs wees take een ans hoes Os oe Tap, Spiral Fluted, Gives Greater Speed.... Tape, Gummed, Preventing, from Unrolling. Tape Holds Inaccessible Nuts ............. Tape, Sealing, Ads Printed on, oS PAE rere rer re ee = Rarer ee eee Tapered Work, Steady Rest for............. Tapers, Setting Compound Rest for......... Tar Sand, Auto Fuel Made from............ Tar Spreader, Four Spray, for Roads....... Target, Dead Whale —— as, by Naval Air- PE tubelvertercteseaetist a akedad tokens wees Target, Iron ‘Ore Island, for Airplane Bombs Tarpon, Camera Catches, in Battle for Life Tassel and Socket Combined for Lamp...... eee ewes Tattooing, Taboo Put on, in South Sea DEE ¢2cbde sere euniine ohaukeeescbeew hen Taxi Meter Used in “Ancient ee Taxidermy—Behind the Scenes in a Museum, by J. T. Edwards Jones................ Taxidermy—Fish Stuffed and Painted so DE THs 06.2.0 06066 866 Reb aan Renes ~~. Cassena Plant a Delightful Substitute ] OP rere TF Pern Teakettle Attachment Warns of Boiling. Teakettle, Copper, How to Mend........... Tees, Golf, po... Be B.S eee eee Teeth, Monster, Found in Rock Quarry ictia ya Teeth. Treatment of, Taught in Room of EE snes om awencae babete shes Telegraph and Telephone ‘Set, Army, Keeps Pe ne . ckc sweeps eens Oa we eae Telegraph Code, Improved Aids Radio- DEE. cc teu ase ccvactewhesheateewene Telegraph, Musical Tone on, is Faster Than Telegraph Wire, Writing Sent Over, by SS rrr ree Telegraphic Circuit for Market Reports to re eer rere, eer ere Telegraphy—How Nation’s Crop Estimates Are Gathered and Sent Out.............. Telephone and Telegraph Set, Army, Keeps OS | rrr eee Telephone, Ground, to Help Save Life of DE. 6.0 ke ess si cdsaCee eked Lhe Os 04h GEe Res Telephone Hour Glass Marks Time of Talk Telephone Keys Run Power Plant.......... ~~. Lines, Breaks in, Radio Helps Dt ti deae ken e eds esbees aed behead couse Telephone Numbers on Wheel Quickly PE Ws be anh ed 06 +0 Onaga ke ees OA Swe Dae ee * Telephone Receivers on Ears, Radio Taught eS 8 rarer ee ee Telephone Science, Latest Marvel of, in Use Telephone Signal Lights, Glass for......... Telephone Switchboard, Naval Radio Con- SN EE ka inh nen ep eS bed Chee ONO Owes e O Telephone, Wireless, Easy with ee ee oro v0e0 519 309 660 575 760 248 408 244 33 517

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Se. 4 in- rk- 1g. Is ir- nbs sife Sea 1m, “so ute of eps lio- nan to tes eps of alk ips kly ght Use on- Sea 51 dD! 576 760 248 408

POPULAR MECHANICS rf lephoning Over Power Lines with Two Complete OED. ccesegccsesevessersedees es 654 lescopes, Kange Finders from Guns Used - GS secostecan PP ee ere he Te Te eee Tee . 336 mpering, Saw “Teeth, “with Electricity. 255 femple, Ancient Babylon Discovered....... $57 mple, Long Lost, Glory of, erry by A. N. Mirzaoff ........ Peer sre 189 emple Model Shows "Skil ‘of ‘Ancient BweliGOGR 6 nc csc ese bensesedeewesesetsewe 220 T mple, World to View “Wonders of Amesens 726 rT nder Reduction Gear, Giant, Used by U. NAVY see eececceccescceesereeesersecceees 84 Tennis Anchor, Two Peg, Keeps Net Taut. 9 Tennis Court in Squares to Teach Accuracy 166 Tennis Net Holder Serves for Many ware POSES cececcesscsccescencssssecssssess - 672 Tennis, Paddle Played in? Any Size Court. - ot Tent, Camping, Made Without Ridgepole. 117 Tent Peg Like Corkscrew ...........eee00: 237 7 Firemen Shoot Water Through Loops nn ir Terre eee eee ee ee ee ee ee ee Test Leads, ‘Convenient “Arrangement for.. 623 Test Piece, A EMtRE .ncccsccccvecsesccecsece 628 Jest Shows Freaks of Climate civhnawe seek 671 Testing, Spark Plug, Lead Pencil for....... 505 Testing Work, Stand for Light............. 952 Thackery, T. Winfield: Furs, Wrapping the World in..... 67, 213, 425 Theatre Scenery, Aluminum, Easily Erased 275 Theatre—Snow Box for the Amateur Stage 961 Theory, Einstein, Most Accurate Balance to ase TOME coerce scveceseccesecenecscensevececes Theory, Einstein’ s, Sticks Used to Test..... 202 Thermometer, Electrical, Tells Fever in Graie GROPRMS 2 cccccccccesevrcecssvccceces 219 Thermometer for the Blind................. 246 Thermos ee Saves Fuel and Helps Keep OOSE adicd tans de eASRSS NCAR RES dd cds oe eaS 220 Thermostat. Control for Carburetor Needle Vee: acteeoursc.c2 bee eneeseetabardeeseeres 480 Thief, Trap to Catch, in Automobile a a te ete 893 Thought, Pictures of, Without Camera..... 267 Thread Spun by Hand on Ancient Wheel.. 355 Threads, Gear Shaped Cutter Generates.... 938 Thresher, Centrifugal, Latest for Farmer.. 940 Thresher, Harvester, Attaching Wagon to.. 287 Thumbtacks, Emergency ...........eeeee08. 142 Thumbtacks Used as Battery Markers..... - 136 Tide Machine Does Work opel Sixty Experts... 604 Tiem, BOWER EDO oc cecoscecacecsccccrccsecces 970 Tile, Cement, Ornamenting ” kcneeape s04466%6.5 638 Tile, Removing. I MERE GPUs bicecdccdseesce’ 945 Timber Hook Handles Heavy Loads....... 65 Timber, Knots in, Fear of, Causes Millions of) ener rir Ca err a 401 Timber, Sound, 5600 Years Old Found in LAE akn 0-005 bos bd as bathed ts ebs beeen ens 27 Timber Supply, Artificial Wood May Save... 831 —e Progress of, Pig's Bristle to Watches 48 S a neebee aed 40 kab ee ses Raes Saba de sane ees 0 Tin Can, ‘Rotary Blower Made from, by SE TOE oc bck sce buwariadicocicscue 463 Tin, Scrap, Toys Made of...... BP Peery 337 TimEGSh, DORROTIM occ pcvcsccsapocesseosesecs 460 Tiny Animals Live in Rrop of Water. 337 Tire, Balloon, on Auto Wheels Absorbs Ge SON EOI oss nd cd sos Scdsne satan 883 Tire Gauge on Each Auto. J. eae 86 Tire—Inner Tube, Self-Sealing, Defies Punc- CONE 5 55:054 65-46 ae Chee Andee hades 40enke kt 27 Tire Paint, Making a Good Liquid.......... 625 Tire Repairs in the Home Garage, by Lowell i, DT adiccks teh aanwaat kaa 'e 641, O08, 965 Tires, Auto, Burned to Save Grape Crop. 413 Tires Hung on Totem Pole Aids Charity. 48 Tires—Inner Tubes Protecting from Rim ccc bcd ccd baresee habe she ewee eran see's 315 Tires, Rim Spreader for Changing.......... 649 Tissue, Silky, Clear as Glass, Proof Against RN oC a eee eee eS go oe 493 foadstool Poison, Cure for, Sought in Serum 444 TORRE, DEUOOET Gio v cn ea ceiasbanessscdessa 720 robacco P ipe, First, Shown in London...... 581 fomb, King Tut's, to be Reopened.......... 928 Tomb of Christopher CHURs 5 8 ccccecscce 768 Tomb of Cleopatra and Other Mummies.... 6503 Tomb, Old Inca, Adding Machine Unearthed 87 ) Eererrerrrerrerrriarrir Tel Tarrererrerisy ‘ool, Boiler Tube, Cleans ‘Ten’ a Minute. 614 fool Box, Keyless, Has Combination Lock. 494 Tool Cabinet, Homemade Upright.......... 139 ool for Handling Light Work............. 629 ‘ool Grinder, Homemade Horizontal........ 453 fool Holder for Small Model Making Lathes 153 OGE TEee Wb AES BIGG s oc cv kccewecnaeesseces 978 INDEX, VOLUME XL, 1923. 35 Tool, Side Planing, Holder for.............. 619 Tool Tray, Convenient Auto................ 135 Tool, Turf SE nahin el aabée » © aee--& 0 we 8e 0:8 478 Toolholder for Amateurs’ Lathe............ 798 er er OF SON. i dckwratenaseseccataes 57 Tools, Rack Keeps, or Clothes Within Reach 522 Toothbrush, Automatic, Attaches to Faucet. 282 Top, Detachable, for Light ara 291 Torch, Acetylene, Cuts Through Steel Two Sep Spree iy gabon ectlapetnetneel ett 210 Torch, Acetylene, Resembles Revolver. 844 Torpedo, Aerial, Called Bloodhound of Sky. 588 Torpedo, Winged, to be Added to U. S. Coast ER ethane GER Luan os «a6 oacicu nc wa 853 a Tied to Planes, Launched in ci 0 4is UMD REE ORs Rese awesde oben s 195 Totem Pole, Tires Hung on, Aids Charity. 48 Tourmaline Has Queer Properties bs ia ec we ie 17 Tourist Camp, Auto, Equipment for..... 129-294 Tourists, Far Away Lands Lure............ 18 Tourists, Michigan, Tour the Country maiaeew 32 Tower Car Raises Camera Above Crowd. 332 Tower Erected as War Memorial at Lough- OO, BEEN souccvecesursovcesd coves 80 Tower, Mirror im Blignal. ....cccccccsscccvece 697 Tower Weather Dial Takes Place of Clock... 251 Wt DEE, SHEE pcckeridsateankvoeeivedens 34 Toy Shows Real Movie Film Without Use of RE Gc.nn6unede dane) 600060 b00 kwleéddabds 585 Toy Village, Man-Made Lightning Bolt PE. ctwtiaeet cheba Gan ae 4edeuee« daeaKe 353 a Se GE OND Riise ws Kc cwiicvenscsaeces 337 Toys: Air-Filled Rubber Toy Floats............. 369 Animals, Life Size, Move by Electricity.. 253 Balloons, Hydrogen Tank for............. 199 Balloons, Win in Race in Paris, France.. 337 oye Sealed in Globe Half Filled With a: ten bas Wi aan eek hb 0 ae Se 407 ry Moves Toy Pig’s Ears in Trying to PD Rebwne ced onad corked dee wou eho ss 379 Horse, Ww ooden, Cantering, Raced by Chil- SEPP eT rere err ee te ee eee 379 Monkey, Cycling, How to Make.......... 305 Plane, Toy, to Train Anti-Aircraft Gun- PPT Te ee TE LET UTETTe Lee 440 Weems, THO Was 6 dcccsescesesevess 797 Track, Railway, Model Shows How to Avoid EE ab bank od bbe bale a be OS Sad wen oo 933 Tracks, Mounted “Dummy Boy” Keeps Rail- Ss, GD baw ad eke ae iy oe Cake ae 93 Trap Made of Sugar-Soaked Sponge Used to PE EE cae deedak hee OSes 4506 2d webs 350 66 ssc eeGRd oe owe bee a0 seeeeu 799 Trap, Rat and Poultry Feeder.............. 639 a OO OO ere 676 Trap, Rat, Set by Foot Pressure........... 39 Trap, Throws Rat from Trap.............. 39 Trap to Catch Thief in Automobile......... 893 Traveler, Berth for Poorest, Provided in PN os GAAS Shs Ke Neamt can wae tbs oe hee 562 Traveling Case Keeps Clothes in Good Con- SE due Tie MO Shea ew OR aS Op Rale ew RA 399 Tray,

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Treasures, Seeking, Diving Suits for, of the EP ee Petr fe ee eee Tree, Cherry, Ancient Held Up by Props.... Tree, Christmas, Electric Lights for, Clamp ee es 8 Ge a os ee ee ee oe ae le ee Tree, Christmas, Kept Fresh by Water in ee ee PAR Aly mera Tree Cutting, Christmas, Washington State Sere er re ee ee rere Tree Device, Fruit, Checks Rising Sap...... Tree—Elm, Washington, Is Dying.......... Tree Giant Hemlock Is Sanctuary ‘Tene- ment Cor Wihe SITES «ccs cccssacestsrscece ree, Grafting Cotton to, Makes Crops NE rk cals me we i ee Oa ae oh re le Tree Limb, Horn Carved from. ...ccscaveses Tree Marker, Neat Bronze, Adopted by Colo- rado Tree Older Than Ice Age: Moved for Builders Tree, Palmlike, “Ivory Nuts” from a, Made em BOGGS. scce tease sce reacsiesensancendive Tree Seedling Roots Grown in “Splints”... Tree, Sleeping Porch in, Has Winding Stair Tree Stump Pulling, Huge Machine for..... Tree Trunk, Indian Carves Bear from...... Trees, Food, Crop of Future Predicted...... Trees, Forest of Fossil, Million Years Old.. Trees, Fruit, Trained in Many Queer Shapes Trees, Mahogany, Grow 200 Years.......... Trees, “Propping’ Pear, with Twine........ Trees, Tractors Tow Canal Barges and Fell Tree’s Trunk Harbors Indian Statue........ Trees—World’s Oldest ‘lhing Saved by Arey wer rer ee eee ee eee Trestle, Huge, Guarded Over Great Salt Lake CH SHH SOS ASHHEHSH MH SESH ROS ECE REC EEHBOES Srestsen, “Reals FOOTIE ooo scc caves eciesecnss Triangle, Holder for Drafting Seale and A Trick—Electricity, Million Volts of, Modern Jove Jugeles Trick—Spirit Hands, “Ectoplasm,”’ and Rub- i Se: acme a chs ee ead ROEEN Oe EHO SES OOS Tricycle, Pedalless, Has Unusual Running fo” PPR TORN ECE CeCe CLERC LeL TLE Trigger, Auto Washer Fitted to Hose Regu- Reet rere rte rer ie Trimmer, Hedge, an Electrically Driven.... Trimming Spreader for Upholsterers Tripod, Clamp Serves as, for Holding Cam- Ee Ee PEO SE ee ree Pe Tripod Nonslip Feet for............. a ee Tripod Stepladder Extension for Camera. PSO, BPP OVINE on on che ccc rsivsasioanreuhe Trouble LAmp Worn: Of COD cscccsesaversess Trouble Light Also Used as Tonneau Light Trough, Bench, for Washing Auto Parts.... Ore, PURGE TOR ceca eens 06 cbse hes Cer eee Trout, Four Lake, Tip Scale at 200 Pounds. Truck Body, Steel, Protects Silks in Transit Truck Carrier for Freight Truck Engine Misfiring, Curing............ Truck Horn Installed Under Floorboards... Truck, Light Auto, Starts Airplane Engines Truck, Portable Lift, for Heavy Crates..... Truck, Small Industrial, Has Crane Attach- irae rt fre, tee? eT CL eC PE TOP ee ee "SRE “TOR TIOTOMMMAS. oi ceipaccsricvacidioce Truck, Two Wheeled Hand, for Heavy Gas ES cc uwhb 12 4H d.6 de USrhe O80) O08 be DAK Truck with Winch, Church Steeple Pulled eT Pe T TTT re e eee eee eer ee Trucks, Dumpless, Air Lift Raises.......... Trucks, Engine Carried on, as Track Is Too MED a@be se ntananvet 60% bata EK GRR O eS Ye eR ESS Trucks, Indians, Beasts of Burden, Cheaper RE eee rere ren eA Sr ee Trucks, Oil Lowered Storage Tanks for DE: sc do kasd tesa eae cah & ate «eee Troeks, Cil, Preventing, from Exploding.. Trunk, Wardrobe, Has Doors on Top and ES Pe Pre retro Eee Ce err ee Truth is Sought by Drug in “Twilight aa wed see ec Teer TE Ee ere Tere ee T-Sliot Cleaner, Homemade... ......-ecscsus Tub, Bath, Safety Has Dressing Table Top. “Tub,” River Is, for Women of Madrid..... Tube, Fire Victims to Slide Through Silk... Tube, Inner, Holder Makes, Repairing HEasy Tube, Self-Sealing, Defies Punctures........ Tubes, Inner, Protecting from Rim Rust.... Tubes, Mailing, Metal Fasteners for....... ° Tubes, Rheostat to Fit All, for Radio Out- ER ee ns Sr rere are e eee ee ee oe ee: ee TD 6 oo od on er ston nee esd eo Tubes, Thin, Holding in Hacksaw Vise..... TERING, CUttis GIRS boc cave cicccececssecse 36 POPULAR MECHANICS INDEX, VOLUME XL, 1923. Tubular Tugboat Work, Light, Holder for ‘lows Huge Liner Across Tuning Fork Unlocks Safe Without Com- i EE OSE EEE PE. Tee Tunnels, Engine Crews Get Brake Tank PO Wetwé tun ows bebe wd Ree eRe Turbine Casting, Huge, Sets Record Size. . Turbine Units, Reaction, Over Artesian Well for Power TE SE, REE a 5 nie os's 0bae soe oka eee ree Meee, TOSCO, ois ccc iokcs se widbebcu: Turnbuckle, Strong, Made of Pipe and Fit- SKA DH CH ra eck a eRSh bs cee bee ES SEES =erpontine, Mow: te Test... .occecarcavebe na: Turret Lathe Bed, Method of Reboring..... Rees VOFT. CG, WOW. aos cn 6 ccve cadbawcre and Angleworms Turtles Crops’ Tusks, Record Size Elephant, from Dark RL | cca cud 6-25 ecb amie be kd deek Oba’ « Twine, “Propping” Pear Trees With........ Tying Machine, Knob, Straps to Hand..... Type Machines, Language of Chinese Set on Typesetting, Mechanical, Music Notes Defy, | ie nc Me ee aaa ren ee Typewriter, brush on, Cleans All Characters at Once Typewriter, Carbon Paper on, Rolls from I SOU nin ai xt ware boa dias +56 ok Oe ee Typewriter Desk, Folding, Lock for........ Typewriter Keyboard Arranged Like Lino- e-waste win i le kos od 6 de ie Typewriter, Messages Record in Code, Ex- we ee er eee - Typewriter, Romance of the, Revealed on BGM. WIctiOtN AMMIVOUERIT ia ccikccwcvsencwss Typewriter, Stabilizing a Portable......... Typewriter Word Counter Utilizes Spac: Pe Wredaws oe tk Wed een endo 50 oo e8 eck bees Typewriters, Copyholder and Line Guide for Typewriting, Best Way of, Shown by Tests ee ie Re eee Umbrella Has Light in Handle............. Underground Moving Pathway, Paris Con- PEE 5 vee edeeeanioys ae Weaseees $406 ta Universal Chuck, Adjustable .............. Universe, Milky Way is “Yardstick” to oe eee ear er ee re ee oe University Hall of Fame Wipes Out Sex Dis- re OR ee ree et Serer University, Skyscraper Planned for......... University—Yale Scholarships, Loans, and Aids Help Self-Support of Students....... Upholsterer’s, Automobile, Stuffing Tool... Upholsterers, Trimming Spreader for....... Vacuum and Brush Take Dirt from Cloth.... Vacuum Bottle Cap Spring Keeps Cork SPU Seti its oe ig oan of en al Ola hd Re a ae Vacuum Cleaner “Blows” Organ........... Vacuum Cleaner, Chalk Marks Wiped with Vacuum Cleaner for PROPee. ...cccccccnacass Vacuum Cleaner Strapped to Shoulder..... Vacuum Handbrush Run by Electric Motor. Vacuum Tank Automobile, Filling the...... Vacuum Tanning Process for Leather...... Vacuum Tubes, Cushions for .............+. Vacuum Tubes, Display Window of, Priz« CD a. os ona i meow 6 ek ae GA eS rn a ne a ig BM aera Valve, Gas, Avoids Death and Fire Danger.. Valve, Relief, Prevents Water Hammer..... Valve Stems, Radio Panel Bushings from... Valves, Facing, on Drill Press...........<«- Valves, Oxygen and Acetylene, Hints on a, ara ears eee range aera Van Body, Steel, Protects Silks in Transit. -. Vanity Case, Book Cover Hides a, and Mani- CG TG vesasas eee eaieteasene Hehe eo hvasd Vanity Case Contains Two Brushes......... Vaporizer, Electric Bulb in, Gets Liquid Tn WE ROE « sears e doch baeieu cakes es Varnish Made of Weedlike Shrub........... Varnish, Painting Picturés of Wood with... Waeee WeaGe Gl Wr BGG. «0c tds ck swsesss Vault Vestibule, Reserve, Weighs Over 100 PE eke rns cada ae aaa ww ne ened xO cus Vegetables, Growth of, Increased by Electric Lights Vehicles, Motor Driven, with Ege Shaped MUON. F668 ocr be dancn teen ees suck Cneewend Veiled, Where the Men are............scee0- Vessel, Civil War, Found by Dredge in NE cedecevaes eeeuavest er thes eeakeeeeek

< aan - ow Vis v Ww

Page 37

on ni- uid 100 ric ved

y. -sel—Columbus Caravel, Sea Scouts Use, or TURE. ocicscbnsnwis downass oms cae 377 V — Frame Built on Hull to Right Cap- 947 VAcl0 ne ee ee ee Vv Jones ME TEAS of Inland “Waters ee rr err 856 ye ssel, One of the Fastest of Its Type, urned COSCO SHEE HEP ee EEE E SEH OLE L OSH OSES 525 Vi ee Ten Ton, Adventurer Crosses” Ocean e16 Vessels of War Go to Junk. is ga ROI no Ai ic Stine mr 742 Vessels Travel on Dry Land................ 693 Vest Pocket Phonograph Built Like Watch 586 Vibrating Machine Used to mares Concrete ROADS secseesescecscsceseneeresetsesencs 895 Violin, Smashed 86 Year old. “Successfully R estored (iti nies CoP neatiecssakneeet « 38 Vis . Attachment Holds Round Stock in. 778 Vise * Grinder, ETT are ee TTT: Vis . Hacksaw, Holding Thin Tubes in...... 301 Vv ” Improved, Grips Odd Shaped Pieces.... 286 Vise Punch Has Powerful Leverage........ 939 Vise, Spring sae, Grips Irregular Arti- 134 ( ~? Cece cceseseseecesereses eeee eosvece . Vi Support, Pipe "Fitter's Pe Orr 461 Vises, Supporting Irregular Work in Ma- CHIGD c6b6K5.6000 dba eh eee ee een ee keene curand 782 Vitamines, Knowledge of, Essential to Grow, GO TRCPOEE aces sadicescccescbix . 326 Voice Testing Devise Aids Singers.......... 48 Voice Through Air to Phone by Means of Selene BAGS BONE 2 setascassrneesaceed 340 Voices, Talking Library of, to Preserve Lan- SUMMON cies 6.46 dae edn damn ewk edvees -.. 565 Voleanic Ash Kille Deer. ...cccccccseccccose 913 Voleano, City Buried by, found in Mexico... 232 Voleano in Fresh Outbreak Destroys Many ce SPP errr rt ae eee soocs Se Vulture Has Keen Organ of Smell.......... 592 wads, Cork, in Gum Ghells. .....ccccccvose 242 Wagon, Attaching to Harvester Thresher... 287 Wagon-Box Derrick Easily Made.......... . 471 Wagon Brake, Increasing Power of......... 317 Wagon, Reconstructing a Small............ 651 Walking Stick Telephone Aids Deaf. 255 Wall Paver, Painted Leather Takes Place of 757 Wall Paper Patterns, Projector Shows...... 281 We alls, Building Retaining Concrete by A. C. €18 CORO cnicon0s ssbeans.s +b sagan cade hes Kat noave 1 Ww — Maze of, Slows en at Cross- . ee eer ee ey ee Ape - 820 Ww ainein Iron Fingers’ oO A eee 937 Walton League, Izaak, to Save Nature, by M. Be: We FE Co wccanbihs cinducsexcca 45 Wan: BPs kad chs ke kane 6s 6 ae 797 War, Civil, Vessel Found by ae in RIOR ccccdcnceceb ds Wess sae satis 6a ek babe 443 War Gas, Deadly, Now Cures Sick.......... 396 War Memorial Tower Erected at Loughbor- CUE bc. encceeeeeW enbeekiweneus 80 Warships, Old Time Wooden, Live Longer THE TOE. cccaikcseetaecBeveeetheuseuses see 169 Wardrobe Trunk Has Doors on Top and at DO wb beldns ord cbddess he deaeesesaadws«cuka 336 Warnings to Careless Automobile Drivers.. 599 Wars, Revolutionary, in Mexico............ 834 Warships Go to Junk..<.ccicsccccvcscscces 742 Wash Board, Rubber, Saves Much Labor. 242 Washbowl for Garage, Concrete............ 795 w ot poo Auto, Fitted to Hose, Regulated by SUMED: cccceeraadesdsedeeseastetsenneh cone 371 w acer, Floating Nut? and, for Arbors. 454 Washer, Simple, from Wash Boiler. 155 Washer, Vibration Proof, for Bolts and re FE as eee 57 Washers, Method of “Grinding hha maces nega 796 Washing Machine Motors, Oiling.......... 146 Washing Machine, Small, Has Folding WE a cv acne AAO aEE aes heres ce kesre 679 Washing Machine Used for Canning........ 315 Washing, Window, — Seat for......... 337 Washtub Stand, |S as Sipe ailing” eae 640 Wasps, Million, are Freed to War on Crop ee ee a rt er ee eee rr 599 Wastebasket ‘in SEPRCNE. iia ekbtwes eee 272 Watch Carved Out of Wood................ 897 Watch Crystal, Tightening ................ 970 Watch, Tickless, Takes Time from Sun. 849 Watch. Wrist, Can be Worn as Ring ‘or Te ema de 921 ‘oo. Pig’s Bristle to, Is Progress of ase Water, Aerating Well and Cistern.......... 472 Water, Breaking Force of, from Hose...... 480 Water Buffer Stops Train without Jar..... 274 POPULAR MECHANICS INDEX, VOLUME XL, 1923.

Water, Conveyor for Lifting, Up Incline.... 975 Water Cooler, Cheap and Serviceable....... 138 Water, Florida Has 4,440 Miles of.......... 601 Water, Foot sich for Pumping, Used in CE ib in.oc czectucccccctsdeopucesescereses 389 Water, Fresh, for ‘Farm ae 815 Water Hammer, Relief Valve Prevents..... 789 Water, — of Mountain Figured from DEES ttt. Gu Los doe cuees weadala cd aaued 671 Water fn Holder Keeps Christmas Tree FT er re ee TT rere 07 Water in “Submarine Hull Traps Crew...... 759 Water Lifted from Wells by Men in India 175 Water, Locating Surface of, in Well........ 816 Water Pipe Forced Up from Pond by Pres- . oe kaw hebeb 6 Men eGse teen ehece eede es oe 6 Water Pipe Threads, Unde rsize, Tight Joints WEED of Die hS des 66 Me aDabeed o0N Behe eRe 402 137 Water Plants, Screen Facilitates Growth of 798 Water Poured into Flashlight Starts Bat- ST MO 6c ankee bs cnetews cece ceessdeve . 860 Water Power Lights Cities............... - 848 Water Pressure Opens Garage Doors....... 111 Water—Seawater for Curing Seasickness... 326 Water, Shield of, Guards Firemen......... 708 Water, Siphon Carries, Under’ Railway ME CE. cn. od, weSSit wis cash bade 376 Water, Sparks Caught in, Prevent Forest Pe: cduasisgeiddsveh speketarab as cee sdnse oo 423 Water Spout Shoots Up ‘to Clouds Piinland é Wikies 676 Water, Swimming Pool, Nature Heats...... 9 Water Takes Place of Ice in Cooler........ 604 Water, Tank in an Anthill Keeps, Cool..... 771 Water, Tiny Animals Live in Drop of...... 337 Water Used for Mining Sand Needed for CD st back d ches tach des es C450 FORK KG ee RS 369 Water Waste, Punched Disk Shows, from Se DE sec tewawe dees ne cteacabaee caw 18 Water Wheel, Floating, Taps Current's PE Sdcc Oh eds eek d Ohh er eeennb en dys Ob 6 280 Watering Methods, Ancient, Used in Indo- SE «5.65 deeds WHORE DG iee SA dR oe eh eeOe oe es 53 Waterless Cooker, Safe, Improves Flavor. 361 Waterproof Glue, How to Make............. 471 Waters, Lake Miracle, Found in India...... 702 Waterway, Lake-to-Gulf, Nears Completion. 824 Waterwheel for Running Small Dynamo... 807 Wave Lengths, Sound and Light, Photo- DPT cc c.cnen aa dacsodseesesaa ae teesiene 95 Waves Harnessed to Build Beach Land..... 86 Waves, Pacific’s Bottom is Chartered by DNs 6s 0604s 5G Ee tian aphenes ences 371 — Weedlike Shrub Turned into Var- one DEE. dima nwo be bnsG id UES Db weke dee neae Weather, Bottle of Mystery Forecasts... 752 Weather, Cedar Logs Floating in Lake POPOORE TORI bccwvesndarcuces cacerss se 749 Weather Dial on Tower Instead of Clock... 251 Weather Forecasting from Ships at Sea.... 8&0 Weather, Freak, Explained by Science..... 262 Weather, Hundreds of Radios Used to CTT TTT eee ee eee 535 Weather Prophet Climbs Over 400 Miles.... 281 Weather Strip, Inmenious..........c.see.0: 808 Weavers, Old Chinese, Used Human and Pr GE ticnceteasesedekbithaneseesec® 118 Weaving Pictures for Carpets and “Rues. 343 Wedges from Rebounding, Keeping........ 971 Wee GEOR, TOMMNOOES cacccccccccscinesses 775 Weed, Hay Fever Cure from..............+. 932 Weeding Tool for Flowerpots ............ 199 Weeds “Turned Into Mutton,”.............. 825 Weight Holds Chest Lid Open.............. 145 Weight, Pencil’s, Bends Steel Bar.......... 857 Weiehts Afloat in Air, Lieht Ray to Hold... 609 Welding and Cutting Table, Homemade.... 125 WHOseee TOO BUA occ cone cddscoccccvcsce 41 Well, Artesian, a Source of Power.......... 282 Well Fire. Rifle as Saw, Smokestack is rrr ery rrr rrr ree rere R25 Well, Locating Surface of Water in........ 816 ee ee. SOMO vo. s cwdddees dues ¥e e000 290 Westminster Hall Roof Indangered by -, % § & Re ere errr eee 199 — Dead, Used as Target by Naval Air- eas whale, Ravages of. Cause Plea for Rounty 34 — Floating Water, Taps Current’s ese wheel of Blades, Whirling, Carves Bowl of ve3 Wheel. § Stone, Ox Team and, “Mix Mortar for 679 bat 9 Telephone eeers on, Carer si7 -- 317

Page 38

38 POPULAR MECHANICS INDEX, VOLUME XL, 1923. Wheelbarrow, Underslung, OR 6 cade bap ee made cee ete cenad ee at Wheels, Depot on, Moved by Locomotive... Wheels, Miniature Churches on............ Wheels, Motor, Do Work of Switch Engine Wheels, “Squirrel Cage,” for Tractor Whipper, Homemade Electric Whiskers, World’s Champion .............. White Africans, Women of, Rule Home White House, Behind the Scenes at the Whitening Process for Metals ............ Wife Hunts, Husband Cooks, in Africa..... Wilderness Wonders to Be Made Accessible, a 2 EE SEOOD cas dacdwboaeedavas vbuces Wild Man of Borneo as He Is Today....... Wilds, Facing Death in, of Peru, by J. T. SED DOMED kdccccioncusertsesevtsacen Winch, Church Steeple Pulled Down by I MEN 6650 s.000 0860404 ganee = b.c00 ae Oe bei Dynamo Mast Used for Wireless Sup- for Carrying sere ee ee eeeee ort wind, Ice and. Nature’s Freight Train. Wind Power Milk peewee ee Ce ee ee ee ee ee Coal Windmill, sionary’ Se Pr eno et ete re Window, Bottle, for Log Henhouse......... Window Boxes and Sills in Concrete, Com- MEL: stvine bodu hos need veee woes 4s wwe é Window Cage, Baby Crib in................ Window Card Useful in Emergency........ Window, Cracked, Baseball in, Attracts At- DE. deabh~en+buChwkthes sachs Souaevaeawss Window Device for Keeping Out Rain Window Display. Novel..............2-000 Window, Folding Bed, Projects Out of Window Glass, Stained Medallion, ee eee Work of ee Window Lichting Arrangement for Store. Window Lock Lets in Fresh Air Window, Making, PER rer Pe ee aa eee Window Refrigerator. Swinging Iceless... Window Regulator. Auto, Uses Gears...... Window Screens, Full Length, Method of PE nicicneg oveabenese toeeee aes wees Window Shade Run on Wires.............. Window—tTransom Control, Novel.......... bat > Vacuum Clip for, Holds Display Dt Gaisedakes san he bounce t kewes ash bade'as Window Washing. Safety Seat for Window Wiper Aids Motormen............. Windows, Casement, Hinge Stops for....... Winds Carry Sand of Sahara to Alps....... Windshields, Broken, Make Plate Glass potas hbo seen Sas bbes 6600 0400ss ode Windsor, H. Churches, | Sermons to Motor, the Murderous Saving the Outdoors ............22-2005. Wings, Detachable, Sky or Sea Plane Has.. bag! and Poultry Netting for Metal Lath- Cr ey ee ng Wire Attaching to Concrete Posts.......... Wire. Rell, Invisible, Hidden Under Paper SE ti dinwter cane dsb eoegwebeges ons» i Wire Brush Wheel for Cleaning Flat Sur- SN Ste nureens snd oes Rhee MEra tse +anewes Wire Clamp for Garden Hese Connections. . Wire Connections, Portable Lamp, Clamp OOD an bwawh Wasco oe'ss caeeeesc chee cede Wire Fence Straichtener................... Wire Fence Stretcher.............-.0.eesee. Wire Fence Stretcher. Novel............... Wire, Fences, Temporary ...............06. Wire Furring Staples Eliminates Wood RO eer ern rere ree Wire Gauge Attachment for Plates......... Wire, Sieves of Bronze, Used to Test Cement Wire Straightener .......... 2 ccc cece ce ccees Wire Stretcher, Powerful One-Man......... Wire Winder, a Barbed ...........c.eeeeees Wire. 17.900 Miles of, Contained in Fire Alarm System of Manhattan Island. N. Y.. Wireless Aerials and Kites Source of Dan- OE: oe ate edn Cat cae ose ee seen Wireless Aerials, Attic. How to Build...... Wireless Aerials, Balloon. to Replace Po'es Wireless, Airplanes with, Guide Fishing Boats to Prey ...ccscccccccccccccscecsees Wireless and Trolley Wire, Street Car Trou- ble Reports by ........-cccccccccccccces 156 904 141 Wireless fatomate. Radio Violations De- tected Cr by eee , x Receive Swimming Lessons Wireless, Color Picture Sent by, “Painted” eh POOR . .<cnncerseekssseegunseeiiiirs 92 Wireless Condenser Combines Interesting Nn on ul¢ scm Wed Onan 6 0 Oa eRe Oe 55 Wireless, Display Window, Prize Offered for 653 Wireless, Dream of a, Empire to Link MEL ttodad socked ends babs oebk oe eae 653 Wireless Eye Sends Moving Picture lM! SPT TTT ier. Cee 71 Wireless Frequency Amplification ......... 318 Wireless Ground Switch, Improvised........ 308 Wireless Helps Find Breaks in Electric NR ar er 73 Wireless Message Saves Ship............... 369 Wireless Messages Sent ~4 Sleeping Stu- CD ooo 660 ues 5 cbbd egies eves cpaaneutecs 917 Wireless, Mystery, Stops Line of Autos..... 195 Wireless, Naval, Controlled by Phone PUREED ccc cteecnsecsgedsicodebaus ve 59 Wireless Noises Stopped Before Reaching SE uvecnen sane e bee Wen dep e san wees ae os 608 Wireless on Motorcycle Used to Catch DE ncttseneus ovkus 0906844009 PO RhRb N's 199 Wireless on Top of Alps to Give Wider ee err ren eee 176 Wireless on Walking Chair................ 351 — Outfits, Rheostat to Fit All Tubes dl PTT eT TCT TTT TOT UT TT TT Or Te Te 927 Wireless—Piano Tones Broadcast by Im- proved Microphone ..........6....eee008- ART Wireless Plants. Six. Planned for Canada... 17% Wireless—Plug Type Aerial Ground Switch 478 Wireless Rav Controls RBomb............... 534 Wireless—Receivers. Increasing Wave Leneth of, by F. L. Brittin............... 481 Wireless Secrecy Gained by “Scrambling” MEE ctsensuacn's Che Kw aves inane oe aeRes ts 269 Wireless Set, Hollow Log is, of Wild Jungle WE sg vnheweess sebs oan es Ot46s 6 Sasa eo 560 Wireless Signals of Standard Frequency Ph .caiae se betes eabhdrathéachonkaba « 165 Wireless Speeds Up Taking of Motion Pic- DN cic ebeew 66 0A5 625000620020 00 eee 165 Wireless Station. Machinery for, Carried 2.000 Miles by Camels ..........-.22.5005 885 he pegeng Support, Wind Dynamo Mast Used <n Wireless Telephone, Talking Through Sea BE CEE veiw ence anes che nedenemeensheese 533 Wireless Telenhones. Hundreds of, Used to Broadcast Weather ............0ceeee eee B35 Wireless Used in Long Distance Concerts... 565 wes. Insulators for Heavy, Screwed in by _ Wires Made to Sine bv Electric Forks..... 445 Wires, Rats Hitched to, Pull String Through Conduits ..........66 cece eeeees 764 Wires, Window Shade Run on.............-. 904 Wolf. Auto Races. to Its Death............. 76 Woman Paints Stuffed Fish So They Ap- SF Te oh en kde e a Oe Dads rwc chess sceuders 399 Woman Robber Chief Leads Rand of Pirates 5% Woman. White, Rules Island of Rich Pearl A SP rr eer errr Cire rT Pere 607 Women, African, Lips Stretching to Eyes DE 9.00.6.40 650 00b 0450506 450 0 4AoO GRAN OO Oe 331 Women Rarred Out of Monastic Republic... 195 Women Emnploved in Mines of India. Kid Women of Madrid Wash Clothes in River. &74 Women of White Africans Rule Home...... 921 Women Unload Steamers in Foreign Ports. 21 Wonders Beneath Surface of Earth Explored by Scientist. by Jaques Boyer ..........- 34 Wonders of World, One Left of Seven, An- GEOR is o.n.60nacod6sagneg coebt eotcachséeece 660 Wood, Artificial, May Save Timber Supply... 83! Wood, Artificial, Scientist Makes........... 403 Wood Box, a Swinging .........+--seeeee5- 816 Wood Carving Revealed as Dying Art...... 600 Wood Eating Insects Endanger Westmin- ster Hall Roof ....cwccccccesccvsscccsees 199 Wood for Baseball Bats Imported from Cuba 849 Wood, Hemp Made Into Artificial........... 840 Wood, Making, Warp Proof...........+.++-- 629 Wood Pins for Golf Tees........--++--+++5 825 Wood Sink Strips Save Dish Breakage...... 276 Wood Substitute for Cork............+-.++: 743 Wood—Timber, Sound, 500 Years Old Found in London

Wrec La

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-. 686 ns 2” or ik re 925 55 653 - 553 -- 171 318 308 73 - 369 917 195 POPULAR MECHANICS INDEX, VOLUME XL, 1923. We a Turned into Milk, Tascugh Cattle der .eseese eeccece Wo: od Turning Lathe Has Motor in’ Head- Wood, Watch Carved Out of 0722222222211. W ooden Posts Stand on Concrete * Floor, Method of Makin Woodwork Bench, Woodworkers, India’ “7. "npern Lathes and SAWS cceceseeseeressesesseseseesesssses W ‘oodworking, Hana Shaper ‘Aids Light:: Wo — Machine Has Many Con- VEMICNCCB ccccceseessessece Woods Colored sind “Scorching “Paint” Mosaic 1) Pe ee ee Portrall® 00 5.49.060066000se8 608 Rh be 04254 008 Woods, Passing “of Lumberjack Recalls Drama GE occ02 060600006 0.44505606se8s00 Word Counter, ‘Typewriter, Utilizes Space Bar ceocccsecceses eevee W ord Japan Bars’ ‘Chinese, ‘from “School- boo COCCHSHESC OOS SSO RESESCOESOS SE LESOCDEOOC®S Work, Color Scheme “for, Affects Output. emilee Work Stand, Auto, Tilts Car at Angle...... Workers, Light Clamped to Finger Aids Night ....e.. Co ccocceesccoceces evccecce Workers, Safeguarding, “in Factories. didn ale ® World Peace Plan, Pr ze Offered for...... ‘ World, What the, Offers the College Man... World Wonders, One Left of Seven Ancient. World’ 8 | Oldest Living Thing Saved by High- eeeeeee worman Spin Colored Unfa ing Threads... W rapping Paper, Name Printed on, as it Un- FOILS caccvtceeds sous 00560) 6046 00450006006 W repeag. Paper Rolls, “Holder | neat ie Wreath Made of Hair from Heads of Nine Generations ........sseeee% bb essusnuesaoe Wreaths, Metal, for NR cn io ctab ae canan W reck—Locomotive, Runaway, “Dives” into ake CeCe eee eee eee eee eeeeeee 593 448 897 39 Wreck—Railroad Train Spent When Heavy Drum Rolls Off Car.......eccescccsecsees 278 Wreck—Street Car Wrecks ‘Building When WORMED TEE ccc cccccsciescescececese 198 Wrecks, Railway Track Model™ Shows How WMP ASGhb been estewecesseseccocces «see 933 Wrench, Extension for...........s.eee008. +» 662 Wrench for Removing Grease Cups bbeceseée 488 Wrench, Horseshoe for Oil Barrels..... 963 bea! pene Speed, Cannot Slip, Is Self-Adjust- ses i in éee Dae teh ood OSCR ews whee 6bene 64060 Wrench, Thumb Pressure on Gives Grip to iesene 6 canes 4 66084 0621600600008000800 749 gs Feeder’ Cuts Risk of Crushed Fin- . sUhahShSde Sdepaseccdisevecsoggseneors 98 wringer, Washing Machine has Folding.... 679 Wringer, Wood Gloves Protect Hands from 395 Wright, Hamilton M.: Relics of Washington in Masonic Memorial 12 Wristpins, Lubricating .............eeeee00% 619 Writing Desk Convertibie ‘into Tabie. 220 X-Ray Aids Students in Study of Anatomy 390 X-Ray Balks Smugglers’ Use of Huge aes 264 X-Ray Heart Action of School Children. 64 X-Ray Letters to Find Missing Checks..... 273 X-Ray Shows way Golfers Miss Hole in EE ectnnoy 0 b00eeo ts ceseendegas eee 605 —— hat Kill Tumors Does Not Harm ese X-Ray Used 8 “Hours in Cancer Treatment. - 403 Yardstick for Fishing Boat................ 164 Zinc, Iron Sprayed with...........eeeeee0s - 226 Zinc Makes Durable Chimney Caps....... -» 962 Zoo Animals Kept Healthy by Science...... 240 Zoo, Collecting Snakes for...........+++++ 679 Zoo, Private, Has Many Strange Animais. 282