The Faith of Islam

Christianity and Islam

The World's Greatest Books — Volume 13 — Religion and Philosophy

The Future of Islam

The Symbolism of Freemasonry / Illustrating and Explaining Its Science and Philosophy, Its Legends, Myths and Symbols

The Philosophy of the Moral Feelings

The Psychology of Revolution

The Biology, Physiology and Sociology of Reproduction / Also Sexual Hygiene with Special Reference to the Male

The Mystic Will. A Method of Developing and Strengthening the Faculties of the Mind, through the Awakened Will, by a Simple, Scientific Process Possible to Any Person of Ordinary Intelligence

The Psychology of Nations / A Contribution to the Philosophy of History

A Complete Biography of Alexander the Great