Books in Animal (sorted alphabetically)
- Thoracic and Coracoid Arteries In Two Families of Birds, Columbidae and Hirundinidae Marion Anne Jenkinson
- Three New Beavers from Utah Stephen David Durrant and Harold S. Crane
- Two New Meadow Mice from Michoacán Mexico E. Raymond Hall
- Two New Moles (Genus Scalopus) from Mexico and Texas Rollin H. Baker
- Two New Pocket Gophers from Wyoming and Colorado E. Raymond Hall and H. Gordon Montague
- Unprotected Species Melvin Sturgis
- Vertebrates from the Barrier Island of Tamaulipas, México Richard F. Johnston, Robert K. Selander, B. J. Wilks, and Gerald G. Raun
- Whales, Dolphins, and Porpoises of the Western North Atlantic Stephen Leatherwood, David Keller Caldwell, and Howard Elliott Winn
- What Bird is That? Frank M. Chapman
- Wild Animals at Home Ernest Thompson Seton
- Wild Bees, Wasps and Ants and Other Stinging Insects Edward Saunders
- Wild Birds in City Parks Herbert Eugene Walter and Alice Hall Walter
- Wolf and Coyote Trapping: An Up-to-Date Wolf Hunter's Guide A. R. Harding
- Woodpeckers Fannie Hardy Eckstorm
- Zoological Illustrations, Volume 1 William Swainson
- Zoological Illustrations, Volume 2 William Swainson
- Zoological Mythology; or, The Legends of Animals, Volume 1 (of 2) Angelo De Gubernatis