APPENDIX. 



" THE PRIMARY FACTOES OF ORGANIC EVO- 

 LUTION," BY E. D. COPE, EXAMINED. 



Since writing the preceding, I have examined the 

 volume entitled, " The Primary Factors of Organic 

 Evolution," by E. D. Cope, recently issued. 



This book having been written by a leading author 

 on paleontology, endeavors to throw new light upon 

 the subject of evolution derived from that source. 

 It also endeavors to explain the origin of variations. 

 For these reasons, especially, I deem it proper to re- 

 view the volume at some length. 



In the introduction the author says: "The doc- 

 trine of evolution may be defined as the teaching 

 which holds that creation has been and is accom- 

 plished by the agency of the energies which are in- 

 trinsic in the evolving matter, and without the inter- 

 ference of agencies which are external to it. It holds 

 this to be true of the combinations and forms of in- 

 organic nature, and those of organic nature as well. 

 Whether the intrinsic energies which accomplish evo- 

 lution be forms of radiant or other energy only, act- 

 ing inversely as the square of the distance, and with- 

 out consciousness, or whether they be energies whose 

 direction is affected by the presence of consciousness, 

 the energy is property of the physical basis of tridi- 

 mensional matter, and is not outside of it, accord- 

 ing to the doctrine we are about to consider. 



(354) 



