334 TIIK BEGINNINGS OF CATSAL MORPHOLOGY 



artificial parthenogenesis may also be mentioned, though 

 their connection with morphology is somewhat remote. 



The period was characterised also by the lively discussion 

 of first principles, in which Driesch took a leading part. 

 Materialistic methods of interpretation were upheld by 

 perhaps the majority of biologists, but vitalism found 

 powerful support. 



