Amateur Work: A Monthly Magazine of the Useful Arts and Sciences (August, 1904)
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PN ee ee ee pila sia, } i ae at hid see oe BN a cies ar ft POS PTA = OPO LT ee eee Wee hte ee efi itm aie athe) Sie Regt ~ roe Aas Frees ee ES. PROP re Pe RT ON te ead TT Ne LO Pee ee ERE! a! eee ee Da Lhe RL EIT kre ee eer te heer ew ge eee Ea ae ee ee ee ee 4 by at, a Se RAS ee. cc az: : Sar *. - = fi +502 ee ae Pd re we RAeee eb FRE Bel as 4G Ub iuie'> paved ai + ee MON : oe) a ES FO V a aye it, S BY, ==, = + i) be an * A ’ u “i A Pa caged ~Farg! i ED eS it i 7 a A a _ e iy BRAT RARE SS, : ’ TAA UA Pe y UPR # i (f\._ css ‘4 g ty » Gascd 7 Red e: ° fs 1. A ne ad Otel \ Ya Steg ’ ety * 7. pe Ly § Lops ne ; EAL SR ee . a ) Coe > ty 1] Nites odes pty aba. AUGUST, 1904 CONTENTS TELEGRAPH TRANSMITTER Frederick A. Draper... 7 p WIRELESS APPARATUS | Howard W. Rice. TELEPHONE CIRCUITS III, Intercommunicating System Arthur H, Bell HANDY COMBINATION | R. G. Griswold BENCH GRINDER B. R. Wicks PATTERN MAKING Vr. Small Gland and Crank PHOTOGRAPHY Printing in Platinum . 267 Removing Films | | 269 4 Focussing Cloth - 269 F. W. Putnam. 264 JOINTS IN WOOD WORKING II. Matched Joints. Francis L. Bain.. 271 TOOL MAKING FOR AMATEURS I. Forge and Set of Punches Robert G. Griswold 272 SOLDERING II. Bunsen Burner H. M. Chadwick. © 275 MAKING ELECTROTYPES S. R. Bottone THE HIGH TENSION ENGINEER) - SENSITIVE GALVANOMETER JUNIOR DEPARTMENT Elementary Mechanics J. A. Coolidge Correspondence “Ss a ss Ne = Ss é ae , | | rermactnamasermgcommavass 7 yy AE Yin ) i} | 3 By | DRAPER PUBLISHING CO., Publishers § 3427 77 KILBY STREET BOSTON, MASS. — Trade supplied by the American News Company Al WA A tn /H4 and All Branches ieee s fA | 9 i pe ‘a % mee - ; > 44, Wannaittennn all RESP A ae RANmRR aR Sa ENG. CO. BOSTON. i wv
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