THE GERM-PLASM 9 1 



complexity in the architecture of the germ-plasm. But if we 

 suppose that the number of ultimate particles of which the 

 germ-plasm is composed is less than the number of parts in the 

 body which are independently variable hereditarily, it would 

 then follow that several minute parts of the body must become 

 changed simultaneously with the variation of one of these parti- 

 cles, — that is to say, the number of determinants then become 

 too small theoretically. 



