The Expression of the Emotions in Man and Animals

The Origin and Nature of the Emotions; Miscellaneous Papers

De l'influence des passions sur le bonheur des individus et des nations

Zoölogische Philosophie Of beschouwingen over de Natuurlijke Historie der dieren etc.

Animal Life and Intelligence

A Treatise of Human Nature Being an Attempt to Introduce the Experimental Method Into Moral Subjects; and Dialogues Concerning Natural Religion

Bodily changes in pain, hunger, fear, and rage

La simulación en la lucha por la vida

Intelligence in Plants and Animals Being a New Edition of the Author's Privately Issued "Soul and Immortality."

Female affection

Animal intelligence: Experimental studies

Straußenpolitik