Animals

The Genera of Phyllomedusine Frogs (Anura: Hylidae)

The Fall of Man; Or, The Loves of the Gorillas

Taxidermy without a Teacher

Wild Life at the Land's End

Animal Locomotion; or, walking, swimming, and flying

Wilderness Babies

On the Phenomena of Hybridity in the Genus Homo

The Coal Measures Amphibia of North America

A Guide for the Dissection of the Dogfish (Squalus Acanthias)

Our Vanishing Wild Life: Its Extermination and Preservation

The Red-Bellied Piranha

The Green Anaconda

The Black Mamba

Cockroaches

Top Ten Deadliest Snakes in the World

The 10 Most Dangerous Snakes in the United States and Canada

The Eastern Diamondback Rattlesnake

The Inland Taipan

The World's Strangest Animals

Monsters in the Night