Importance of the Study of Galls 121 



elusion, however, that germ-plasm is by no means limited 

 to those cells which need it for their own development, nor 

 to their progeny, we may even now regard as perfectly 

 certain. 



And this is probably the most important inference 

 which we may deduce from this entire section. With it 

 we have established one of those laws which can be ap- 

 plied as bases for our hypothesis. But we shall revert to 

 this in the last Section. 



