Animals

Variation in the Muscles and Nerves of the Leg in Two Genera of Grouse (Tympanuchus and Pedioecetes)

The Mammals of Warren Woods, Berrien County, Michigan

The Elephant's Ball, and Grand Fete Champetre

Mammals of Northwestern South Dakota

The Unexploited West

The Ancestry of Modern Amphibia: A Review of the Evidence

Horses of the Great War

Mrs. Loudon's Entertaining Naturalist Being popular descriptions, tales, and anecdotes of more than Five Hundred Animals

On the Phenomena of Hybridity in the Genus Homo

Our Vanishing Wild Life: Its Extermination and Preservation

Buffalo Land

The Preparation of Bees for Outdoor Wintering

Wilderness Babies

The Coal Measures Amphibia of North America

The World's Strangest Animals

Monsters in the Night

Sharks & Underwater Monsters

The Red-Bellied Piranha

The Green Anaconda

The Black Mamba