8 books
Darwinism To-Day; A Discussion of Present-Day Scientific Criticism of the Darwinian Selection Theories, Together with a Brief Account of the Principal Other Proposed Auxiliary and Alternative Theories of Species-Forming
Darwinism To-Day [Microform]
Headquarters Nights; A Record of Conversations and Experiences at the Headquarters of the German Army in France and Belgium
Animals; A Text-Book of Zoology
Inheritance in Silkworms
Common Injurious Insects of Kansas
Animal Life; A First Book of Zoology;
Herbert Hoover, the Man and His Work