COLLATERAL READINGS SUGGESTED 



IN CONNECTION WITH ESSAY IV. 



Haeckel's History of Creation y Lyell's Geology ; Le Conte's Ge- 

 ology; Dana's Geology; Winchell's World Life; Clodd's Story of 

 Creation; Kamsay's Earth Sculpture; Heilprin's Geological Ev- 

 idences of Evolution. 



