48 HEREDITY AND ENVIRONMENT 



its terrors, when closely scrutinized. But the 

 statement that mind develops from the germ 

 cells is not an affirmation of materialism, for 

 while it identifies the origin of the entire indi- 

 vidual, mind and body, with the development 

 of the germ, it does not assert that "matter" 

 is the cause of "mind" either in the germ or 

 in the adult. It must not be forgotten that 

 germ cells are living things and that we go no 

 further in associating the beginnings of mind 

 with the beginnings of body in the germ than 

 we do in associating mind and body in the 

 adult. It is just as materialistic to hold that 

 the mind of the mature man is associated with 

 his body as it is to hold that the beginnings 

 of mind in the germ are associated with the 

 beginnings of the body, and both of these 

 tenets are incontrovertible. 



It seems to me that the mind is related to 

 the body as function is to structure; there are 

 those who maintain that structure is the cause 

 of function, that the real problem in evolution 

 or development is the transformation of one 

 structure into another, and that the functions 

 which go with certain structures are merely 



