BOOKS RECOMMENDED. 149 



Osborne : Contemporary Evolution of Man. Recent Problems 

 in Heredity. 



Powell : Our Heredity from God. 



Ritchie: Darwinism and Politics. Pauperism in the Light of 

 Natural Selection. 



Romanes: Darwin and After Darwin. 



Ross : Turning Towards Nirvana. 



Schurman : Ethical Import of Darwinism. 



Spencer: Factors in Organic Evolution. Data of Ethics. 

 Synthetic Philosophy. Insufficiency of Natural Selec- 

 tion. (Etc.) 



Stephen: Ethics of Evolution. 



Tyndall : Floating Matter in the Air. 



Wallace: Darwinism. 



Ward : Practical Nature of Dynamic Sociology. Present 

 Status of the Mind Problem. Psychic Factors in Evolu- 

 tion. Weismann's Concessions. 



Warner: Evolution of Charities. Statistical Determination of 

 Causes of Poverty. 



Weismann: Essays on Heredity (two series). The Germ 

 Plasm. All-Sufficiency^of Natural Selection. 



White: Warfare of Science. 



Whitman: Biological Lectures (at Wood's Holl). 



