120 ADAPTATION AND PROGRESS 



physical adaptation are clearly set forth with suggestions of the 

 potency of artificial selection and hygiene, factors that belong 

 to active adaptation. 



This work we have so briefly reviewed takes us into the very 

 heart of inductive sociology and might well introduce us at once 

 to a review of the social philosophers who have emphasized the 

 inductive method as applied to the whole social process but we 

 must turn aside to consider some who have given their attention 

 primarily to the problem of social philosophy as a whole, to the de- 

 velopment of the concept of society as a psychological organism, 

 and to an analysis of the socio-psychical factors in the develop- 

 ment of civilization, all these writers making considerable use 

 of the deductive method. 



