The Descent of Man and Selection in Relation to Sex, Vol. I

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

Logic / Deductive and Inductive

Confidence

The Future of The Internet and How to Stop It

The Economist

The God-Idea of the Ancients / or Sex in Religion

The Sex Worship and Symbolism of Primitive Races / An Interpretation

Phallic Miscellanies / Facts and Phases of Ancient and Modern Sex Worship, as / Illustrated Chiefly in the Religions of India

Architects of Fate / or, Steps to Success and Power

Biology / A lecture delivered at Columbia University in the series / on Science, Philosophy and Art November 20, 1907