530 Specific modifications of Japan Carahi. 



any arbitary classification ; for then, as in the past, she 

 will simply continue the inevitable modifications of sur- 

 viving organisms through the means of the agencies 

 which will result from those which are, as we have said, 

 now in operation. And when that future shall have 

 become the jiresent the descriptive matter of to-day will 

 not apply to existing forms, but instead of an abstract 

 idea of the differences in insects, we may have a more 

 certain knowledge as to their origin, and the working of 

 those laws which both accelerate and control their de- 

 velopment. 



