ip] THEORIES OF NATURE AND NURTURE 19 



a valuable element of truth. Likewise they agree with 

 the euthenist when he says that it is possible vastly to im- 

 prove a people by ameliorating its environment. Select- 

 ing elements from the theory of each party, they hold that 

 both nature and nurture are important, that neither alone 

 can adequately explain the appearance of genius. It is 

 this theory which the facts presented in Chapter III of this 

 study seem to support, and which will be maintained in the 

 discussion which is to follow. 



