474 



PHYSIOLOGY 



Forebfain 



Cortex 



....... Occipital cortex. 



-- Cerebellum 



N. opt. 



eye 



^.Cerebellum 



FIG. 210. Diagrams from Monakow, showing the evolution of the neo- 

 pallium, and the gradual shifting of the visual sensory tracts from the 

 mid-brain to the fore-brain, and thence to the occipital cortex. 

 A, a bony fish. B, brain of a lizard. C, brain of a mammal (cat). 



