Comparative Religion

Religions on Trial

Religion in the Heavens; Or, Mythology Unveiled in a Series of Lectures

Bahaism and Its Claims

Myths of China and Japan with illustrations in colour & monochrome after paintings and photographs

American Hero-Myths: A Study in the Native Religions of the Western Continent

Ancient Faiths And Modern

Preaching and Paganism

The Origin of Christian Science

Modern Substitutes for Christianity

Pagan and Christian Creeds: Their Origin and Meaning

Mexico and Its Religion

The Independent Church of God of the Juda Tribe of Israel: The Black Jews

Between Heathenism and Christianity

Islam, Her Moral And Spiritual Value: A Rational And Pyschological Study

Twice-born Men in America

The Girl and Her Religion

The Penitente Moradas of Abiquiú

The Religious Life of the Zuñi Child

India's Problem, Krishna or Christ

The Truth About Jesus : Is He a Myth