Essays on Contemporary Events
C. G. Jung
The Descent of Man, and Selection in Relation to Sex
Charles Darwin
Mädel im Gesundheitsdienst (1941)
Reichsjugendführung
Mark Twain: The Complete Interviews
Gary Scharnhorst
The Principles of Biology, Volume 1
Herbert Spencer
The Principles of Biology (1)
The Principles of Biology, Volume 2
The Principles of Biology (2)