COLLATERAL READINGS SUGGESTED 



IX CO.NXECTIOX WITH ESSAY XII. 



Darwin's Or'ujin of Species ; Haeckel's HUtory of Creation, and 

 Evolution of Man; Spencer's Biology ; Fiske's Cosmic Philosophy 

 and Excursions of an Evolutionist ; Huxley's Letters on Evolution 

 and Critiques and Addresses ,• Romanes' Scientific Evidences of 

 Organic Evolution ; Wallace and Dyer's The Distribution of Life ; 

 Schmidt's Doc^cm^ of Descent and Darioinism ; Gazelle's Outline of 

 the Evolution Philosophy: Professor Morse's Presidential Address 

 before tlie American Association for tlie Advancement of Science, 

 1887. 



