g Q 0*00 



X Flexion of fors linb 

 L Flexion of hied limb 

 Q Extension of hind limb 

 Movement of head and nook 



O Dilation of pupils 

 Movement of eyea 

 Q) tiovenent of lids 

 ~] t:ovement of Blotlt 



Retraction of tongue 



Q] :.:oT8rasnt of tongue 



Q lavement of lips 



Movement of mandlbla 



FIG. 17. Giving graphically the results of the stimulation of the usually con- 

 cealed parts of the cortex within the crucial sulcus. The kinds of movements 

 are indicated by small geometrical marks, the explanations of which are given 

 below the figures. A shows the results obtained on the posterior bank of the 

 right crucial sulcus of cat 16; B shows the results on the posterior bank of the 

 sulcus on the left side, and C those on the anterior bank of the left side of the 

 same animal. D shows the results of the stimulation of the anterior bank of the 

 left crucial sulcus of the left side of cat 15. 



195 



