THE DARWINIAN THEORY 



f ul case against the doctrine of the all-suf- 

 ficiency of natural selection, and we feel 

 sure that his arguments will awaken a 

 sympathetic chord in the minds of many, 

 if not most, zoologists, among whom there 

 is a general feeling that we want more 

 than natural selection." 



Professor H. F. Osborn of Columbia 

 University, in an elaborate paper which 

 attracted wide attention both in this coun- 

 try and in Europe, read before the Ameri- 

 can Association of Science, August, 1894, 

 on the " Rise of Mammalia," sums up with 

 the conclusion that " The point is that a 

 certain trend of development is found in 

 each species leading to an adaptive or to 

 an inadaptive final issue, but extinction, or 

 survival of the fittest, seems to exert little 

 influence en route" 



No name stands higher among working 

 biologists than that of Professor Oscar 

 Hertwig of Berlin. But in his ponderous 

 15 



