Books in Animal (sorted alphabetically by author)
- Ecological Observations on the Woodrat, Neotoma floridana Dennis G. Rainey and Henry S. Fitch
- The Bird Book Chester A. Reed
- In New England Fields and Woods Rowland Evans Robinson
- Four New Pocket Gophers of the Genus Cratogeomys from Jalisco, Mexico Robert J. Russell
- Pleistocene Pocket Gophers From San Josecito Cave, Nuevo Leon, Mexico Robert J. Russell
- A New Species of Pocket Gopher (Genus Pappogeomys) From Jalisco, México Robert J. Russell
- Wild Bees, Wasps and Ants and Other Stinging Insects Edward Saunders
- Wild Animals at Home Ernest Thompson Seton
- Mutineer Robert Shea
- Marvels of Pond-life Henry James Slack
- The Raising and Care of Guinea Pigs Allen Christian Smith
- The Tadpoles of Bufo cognatus Say Hobart M. Smith
- Selected Records of Reptiles and Amphibians from Kansas Hobart M. Smith and John Breukelman
- A New Bat (Genus Leptonycteris) From Coahuila Howard J. Stains
- Myology and Serology of the Avian Family Fringillidae: A Taxonomic Study William B. Stallcup
- Natural History of the Mammalia of India and Ceylon Robert Armitage Sterndale
- The Unprotected Species Melvin Sturgis
- Zoological Illustrations, Volume 2 William Swainson
- Zoological Illustrations, Volume 1 William Swainson
- A New Hylid Frog from Eastern Mexico. Edward Harrison Taylor
- Sketches of the Natural History of Ceylon Sir James Emerson Tennent
- Birds from North Borneo Max C. Thompson
- Check-list of the Birds of Kansas Harrison Bruce Tordoff
- Humpback Whales in Glacier Bay National Monument, Alaska United States. Marine Mammal Commission
- History of Beasts Unknown