Animals

A Check-List of the Birds of Idaho

The Ornithosauria

The Glow-Worm and Other Beetles

Hunting the Grisly and Other Sketches

Natural History of the Ground Squirrels of California

Natural History: Fishes

The Accomplished Muskrat Trapper: A Book on Trapping for Amateurs

A Short History of the Academy of Natural Sciences of Philadelphia

Natural History: Mollusca

New Zealand Moths and Butterflies (Macro-Lepidoptera)

Domesticated Animals

From North Pole to Equator: Studies of Wild Life and Scenes in Many Lands

Birds of Song and Story

Two Ways of Becoming a Hunter

Four-Footed Americans and Their Kin

Angelfish

Llamas and Alpacas

The Lizard Keeper's Handbook

Green Anoles

The Green Iguana Manual