Evolution

The Baculum in the Chipmunks of Western North America

The Factors of Organic Evolution

The Ancestry of Modern Amphibia: A Review of the Evidence

Can a Scientist Believe in Miracles

Gene Dialogues

Evolution of Life and Form

History of biology

Blue Farming

On the Antiquity and the Unity of the Human Race

From Atoms to Awareness

Social Learning

Nature's Compass

On the Reception of the 'Origin of Species

The Mechanism of Life

Half Hours With Modern Scientists

Are the Effects of Use and Disuse Inherited

The Social Direction of Evolution: An Outline of the Science of Eugenics

Degeneration: A Chapter in Darwinism

Evolution: An Investigation and a Critique

Evolution