On the Relations of Man to the Lower Animals

The Works of Aristotle the Famous Philosopher Containing his Complete Masterpiece and Family Physician; his Experienced Midwife, his Book of Problems and his Remarks on Physiognomy

Man's Place in Nature, and Other Essays

The Natural History of the Varieties of Man

Grundriß der menschlichen Erblichkeitslehre und Rassenhygiene (1/2) Menschliche Erblichkeitslehre

Human, All-Too-Human: A Book for Free Spirits, Part 1 Complete Works, Volume Six

The Kingdom of Man

Die Sitten der Völker, Erster Band Liebe, Ehe, Heirat, Geburt, Religion, Aberglaube, Lebensgewohnheiten, Kultureigentümlichkeiten, Tod und Bestattung bei allen Völkern der Erde

Naar den equator, met een voorspel: van pastoor soldaat

Primitive culture, vol. 2 (of 2)

The master of destiny