414 BIOLOGY. [Boox vr. 



may consider these three varieties of sensibility as three modes, 

 three degrees of the same sense. 



From the point of view of dignity, of psychological nobleness, 

 touch, taste, and smell are coarse, inferior senses. In man they 

 have no special memory. The sensations and impressions which 

 they procure leave no durable traces, and the imagination by 

 itself is powerless to revive them. 



With the two special senses of which we have now to speak 

 it is far otherwise. 



