The Secret of the Totem

Social Origins and Primal Law

Civilization the Primal Need of the Race, and The Attitude of the American Mind Toward the Negro Intellect The American Negro Academy. Occasional Paper No. 3

The Theory of Social Revolutions

A Critical Examination of the Position of Mr. Darwin's Work, "On the Origin of Species," in Relation to the Complete Theory of the Causes of the Phenomena of Organic Nature Lecture VI. (of VI.), "Lectures to Working Men", at the Museum of Practical Geolo

The Conditions of Existence as Affecting the Perpetuation of Living Beings Lecture V. (of VI.), "Lectures to Working Men", at the Museum of Practical Geology, 1863, on Darwin's Work_ "Origin of Species"