508 STUDIES, SCIENTIFIC AND SOCIAL ch. xxii 



will be produced by Professor Weismann's recent sugges- 

 tion of " germinal selection," so that it now appears as if 

 all the theoretical objections to the " adequacy of natural 

 selection " have been theoretically answered. 



Biologists owe a debt of gratitude to Professor Lloyd 

 Morgan for this most interesting and suggestive volume. 

 It exhibits all the clearness and philosophical acumen 

 which characterize the writings of the author, and al- 

 though in his desire to be impartial he has sometimes 

 suggested difficulties which are more apparent than real, 

 yet the work is on the whole an admirable introduction to 

 the study of a most important and fascinating branch of 

 biology, now for the first time based upon a substantial 

 foundation of carefully observed facts and logical induction 

 from them. 



