THE BRAIN 131 



half, the central element being preserved entire instead 

 of being cut through on a meridian. This is inter- 

 preted as signifying a reduplication of the representa- 



FIG. 30. The relation between the retinas and the brain. The 

 right half of each retina is heavily scored and will be seen to be con- 

 nected with the right occipital region through intermediate centers. 



tion of this superior central area in the two occipital 

 regions. 



Impulses arriving from the part of the ear which 

 has to do with hearing traverse the medulla and ascend 



