i6o Human Personality. 



face of the cortex and branch, like a tree top, into smaller 

 and smaller processes and fibrils, till the best methods of 

 preparation fail to trace them farther. 



In this outer layer of the cortex of the cerebellum 

 (which has been inappropriately termed the molecular 

 layer), the extended,. constantly branching processes of 

 many cells lie side by side, contiguous, and in contact ; and 

 as these processes and fibrils are protoplasmic and sentient, 

 we can scarcely doubt that they perceive each other from 

 such contact, and communicate one with another. In a 

 word, there is the strongest probability, short of certainty, 

 that the business of willing movement outward to the mus- 

 cles is dependent upon the concerted action of these cells. 



Besides the fibrils of the large Purkinje cells there are 

 also in this outer "molecular" layer, minute fibrillar pro- 

 cesses from great numbers of smaller cells which lie em- 

 bedded in it; also nervous fibrils which, so far as 

 discovered, are not processes of cells, but seem to be of 

 the nature of separate growths, analagous in some degree 

 to the fibers of muscular tissue, which are not pure proto- 

 plasm but of the nature of protoplasmic alloys. 



These latter minute fibers' also lie in contact with the 

 diffused fibrils of the Purkinje cells, and apparently bear 

 sentient impulses from them downward into the vast hank 

 of central fibers. 



Beneath this layer of large-branched cells, there is 

 another class or variety of smaller nuclear cells, the bodies 



