Mammals

Evolution and Classification of the Pocket Gophers of the Subfamily Geomyinae

Geographic Variation in the Pocket Gopher, Thomomys bottae, in Colorado

Wild Animals of North America

The Life Story of an Otter

The Courtship of Animals

Sharp Eyes, the Silver Fox: His Many Adventures

Animal Locomotion; or, walking, swimming, and flying

American Big-Game Hunting: The Book of the Boone and Crockett Club

The Voice of the Pack

Blazed Trail Stories and Stories of the Wild Life

The Indian in his Wigwam; Or, Characteristics of the Red Race of America

Hunting the Grisly and Other Sketches

Natural History of the Ground Squirrels of California

The Accomplished Muskrat Trapper: A Book on Trapping for Amateurs

Plants Poisonous to Live Stock

Subspeciation in the Meadow Mouse, Microtus pennsylvanicus, in Wyoming, Colorado, and Adjacent Areas

Genera and Subgenera of Chipmunks

The Life Story of a Black Bear

The Grizzly, Our Greatest Wild Animal

Taxidermy without a Teacher