Its Composite and Dissoluble Nature. 



163 



comparatively, and are found to have bodies .12 mm. in 

 length by .05 mm. in width; but, in far greater numbers, 

 there is associated with them a class of small pyramidal 

 cells, much like those described above as regards form and 

 processes, but smaller, having bodies no more than .01 



AAA LARGE PYRAMIDAL CELLS OF THE CORTEX CEREBRI. 



C C C SMALL PYRAMIDAL CELLS. 



BBB AXIS CYLINDER PROCESSES. 



DDD APICAL PROCESSES AND PROTOPLASMIC BRANCHINGS, 



mm. in length by .005 mm. in width. It is not impossible 

 that these small pyramidal cells are a reserve in slow 

 process of development to the larger class, or would so 

 develop under stimulus. 



