PERMANENCE AND EVOLUTION. 



INTRODUCTION. 



THE notion of genus and species in the animal 

 kingdom originates with Linnaeus, as also does 

 that of unity of descent as connected with the 

 latter. I think he was brought to this doctrine 

 by considerations of a dogmatic kind. Linnaeus, 

 who was an orthodox Lutheran, finding in 

 Genesis that all living beings were created after 

 their kind, and finding elsewhere in Scripture 

 that all races of men sprang from one pair, 

 presumed that all animal types logically equiva- 

 lent to the types of man, also sprang from one 

 stock. But gradually, where Linnaeus had seen 



B 



