COLLATERAL READINGS SUGGESTED 



IN CONNECTION WITH ESSAY VI. 



Darwin's Origin of Species; Haeckel's Creation; Spencer' s Biolo- 

 gy; Huxley's Palaeontology and the Doctrine of Evolution (in Cri- 

 tiques and Addresses), Lectures on Evolution, and On the Origin of 

 Species; Lyell's Geology, and Lamarck and Darwin, and Various 

 Theories as to Species; LeConte's Geology ; Wallace's Contribution 

 to the Theory of Natural Selection, Geographical Distribution of 

 Plants and Animals, and Malay Archipelago ; Chapman' s Evolution 

 of Life; St. George Mivart On the Genesis of Species ; Powell's Our 

 Heredity from God; Karl Semper' s Animal Life as affected by the 

 Natural Condition of Existence ; Ransom Dexter' s The Kingdoms 

 of Nature. 



