THE FOEM-EELATIONS OF THE HUMAN BEAIN. 



185 



Tentricles from hemisphere to hemisphere (at a, in Fig. 32). For this reason, 

 therefore, the ventricle is not found at the bottom of the great fissure, but 

 the corpus callosum, as this mass of transverse fibers is called. The corpus 

 callosum is now divided, and, after removing what white matter still remains 



Fig. 125. — The brain opened by a horizontal section and viewed from above. The 

 two hemispheres are somewhat drawn apart from one another posteriorly. 



