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

The Expression of the Emotions in Man and Animals

The Ancient History of the Egyptians, Carthaginians, Assyrians, / Babylonians, Medes and Persians, Macedonians and Grecians / (Vol. 1 of 6)

Philosophy and Religion / Six Lectures Delivered at Cambridge

Psychology and Industrial Efficiency

Voltaire's Philosophical Dictionary