Zoology

On the Parts of Animals

Apes and Monkeys: Their Life and Language

New Species and Synonymy of American Cynipidæ

Explanation of Terms Used in Entomology

Half Hours with the Lower Animals

New Subspecies of the Rodent Baiomys from Central America

The Ancestry of Modern Amphibia: A Review of the Evidence

Natural History of the Salamander, Aneides hardii

A Guide for the Study of Animals

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

A New Subspecies of the Fruit-eating Bat, Sturnira ludovici, From Western Mexico

Parasites: A Treatise on the Entozoa of Man and Animals. Including Some Account of the Ectozoa

Migration of Birds

Geographic Variation in the North American Cyprinid Fish, Hybopsis gracilis