Books in Animal (sorted alphabetically)
- Guide for the Study of Animals Worrallo Whitney, Frederic Colby Lucas, Harold Brough Shinn, and Mabel Elizabeth Smallwood
- Habits, Haunts and Anecdotes of the Moose and Illustrations from Life Charles Albert Jones
- History of Beasts Unknown
- Home Range and Movements of the Eastern Cottontail in Kansas Donald W. Janes
- House Rats and Mice David E. Lantz
- Humpback Whales in Glacier Bay National Monument, Alaska United States. Marine Mammal Commission
- Hunting in Many Lands: The Book of the Boone and Crockett Club
- Illustrative Anecdotes of the Animal Kingdom Samuel G. Goodrich
- Industries of Animals Frédéric Houssay
- In New England Fields and Woods Rowland Evans Robinson
- Jaw Musculature of the Mourning and White-winged Doves Robert L. Merz
- Journal of Entomology and Zoology, Vol. 11, No. 2, June 1919 Various
- Journal of Entomology and Zoology, Vol. 11, No. 4, December 1919 Various
- Life History of the Kangaroo Rat Charles Taylor Vorhies and Walter P. Taylor
- Mammals from Southeastern Alaska Rollin H. Baker and James S. Findley
- Mammals from Tamaulipas, Mexico Rollin H. Baker
- Mammals Obtained by Dr. Curt von Wedel from the Barrier Beach of Tamaulipas, Mexico E. Raymond Hall
- Mammals of Mesa Verde National Park, Colorado Sydney Anderson
- Mammals of Northwestern South Dakota J. Knox Jones and Kenneth W. Andersen
- Mammals of the Grand Mesa, Colorado Sydney Anderson
- Mammals of the San Gabriel Mountains of California Terry A. Vaughan
- Mammals of Warren Woods, Berrien County, Michigan Lee R. Dice
- Mammals of Washtenaw County, Michigan Norman Asa Wood
- Mammals taken Along the Alaska Highway Rollin H. Baker
- Marvels of Pond-life Henry James Slack