406 Proceedings of the Royal Society of Edinburgh. [Sess. 
they form the most prominent feature in the whole field, and, as they are 
most abundant in this area, they evidently have some significance. The 
4 
* * 
... r;>. 
^ m v k;. > : 
A A Cm \ 4 * *■ * 
* ,( i H ' J \ 
Fig. 5. — Type III. x 100. 
results of electrical stimulation of the cortex will be described later, but it 
is sufficient here to point out that motor reaction was obtained from the 
areas showing this particular type of cell. Further, the fact that these 
areas are comparatively poor as regards their granular zones would imply — - 
