THE EQUIVALENTS OF THE HAND. 128 



from the nerve supplying the antennae ramifies 

 upon it. 



The forms of the antennae in insects are so 

 multitudinous, that we cannot attempt here to 

 describe them ; and with regard to the reasons 

 for such extreme diversity, we must confess 

 that they are not yet understood. 



So far, then, have we followed out our sub- 

 ject. "We began with the arm and hand of 

 man, the leading modifications of Avhich we 

 traced throughoiit the series of vertebrate. We 

 considered this portion of the frame in man not 

 only as an organ of prehension, but also of 

 touch, the latter gift rendering it perfect. We 

 followed it as an organ of touch through the few 

 animals nearest to man, and when, descending 

 lower, we found this sense no longer present in 

 the anterior extremities, we attempted to show 

 to what organs it is removed by way of com- 

 pensation, thereby exemplifying the consistency 

 and propriety Avhich are evident throughout 

 the works of creation. In man it was shoAvu 

 that it was a great advantage that his hand 

 should be the seat of the sense of touch ; in 

 other animals this sense is wisely not so placed, 

 but, on the contrary, allotted to other parts of the 

 structure, in accordance with their necessities. 



