Animal
Free to read here, from Project Gutenberg.
Natural History of the Mammalia of India and Ceylon
The Extermination of the American Bison
The Bird Book
Sketches of the Natural History of Ceylon
Our Vanishing Wild Life: Its Extermination and Preservation
Wild Animals at Home
Birds, Illustrated by Color Photography, Vol. 1, No. 4
Whales, dolphins, and porpoises of the western North Atlantic
Delineations of the Ox Tribe: The Natural History of Bulls, Bisons, and Buffaloes.
Butterflies and Moths (British)
Zoological Mythology; or, The Legends of Animals, Volume 1 (of 2)
Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)
Hunting in Many Lands: The Book of the Boone and Crockett Club
Artistic Anatomy of Animals
Color Key to North American Birds
Deadfalls and Snares
Animals of the Past
Zoological Illustrations, Volume 1
Antarctic Penguins: A Study of Their Social Habits
Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz
What bird is that?
Argentine Ornithology, Volume 1 (of 2)
Birds, Illustrated by Color Photography, Vol. 1, No. 5
The Minds and Manners of Wild Animals: A Book of Personal Observations
Fifty Years a Hunter and Trapper
Humpback Whales in Glacier Bay National Monument, Alaska
Zoological Illustrations, Volume 2
The Barren Ground Caribou of Keewatin
The Pigmy Woodrat, Neotoma goldmani, Its Distribution and Systematic Position
On the Origin and Metamorphoses of Insects
Ducks and Geese
A Monograph on the Sub-class Cirripedia (Volume 1 of 2)
Birds, Illustrated by Color Photography, Vol. 1, No. 3
Birds Every Child Should Know
On Snake-Poison: Its Action and Its Antidote
An Australian Bird Book: A Pocket Book for Field Use
Butterflies Worth Knowing
Birds, Illustrated by Color Photography, Vol. 1, No. 1
British Birds in Their Haunts
Freshwater Sponges, Hydroids & Polyzoa
Birds, Illustrated by Color Photography, Vol. 2, No. 2
Science of Trapping
Seaside Studies in Natural History. Marine Animals of Massachusetts Bay. Radiates.
The Breeding Birds of Kansas
The Amphibians and Reptiles of Michoacán, México
The Industries of Animals
Illustrative Anecdotes of the Animal Kingdom