Animals

The Genera of Phyllomedusine Frogs (Anura: Hylidae)

A Check-List of the Birds of Idaho

False Knees

Condor

The Wool Industry a Global History

Riding Home

World Wild Vet

Animal Analogues: Verses and Illustrations

Mammals of the San Gabriel Mountains of California

Watched by Wild Animals

Social Learning

Gifts of an Eagle

Paths of the Mound-Building Indians and Great Game Animals

The Wild Elephant and the Method of Capturing and Taming it in Ceylon

The Field Guide to Horses

Know Your Hobby Animals a Breed Encyclopedia

Savannah and Grassland Monitors

Horned Frogs

Geckos

Scorpions