THE CENTRAL NERVOUS SYSTEM. 



Frontal. 



Visuo-psychic. 



Audito-sensory. 



Audito-psychic. 

 Temporal. 



II. 



Intermediate post-central 



Parietal. 



Intermediate 

 pre-central. 



/, 



Visuo- *- *" 

 psychic. 



Pre-f rental. 



Visuo-sensory. 



FIG. 25. Diagrams (orthogonal) of cortical areas as determined l?y the distribution and 

 arrangement of fibres and cells. (A. W. Campbell.) From Quain's Anatomy, 

 I., lateral surface ; II., mesial surface. 



