called the inf undibulum ; it is hollow, and its funnel-shaped 

 diverticulum is called the infundibular recess of the third ven- 

 tricle. The gray lamina composing the tuber communicates 

 with the central ventricular gray, and, therefore, with the 

 lamina cinerea, or terminalis. 



FIG. 51 



Frontal lobe. 



Occipital 

 lobe. 



of the bruin. (Ciray.) 



The pituitary body, or hypophysis, occupies the fossa hypo- 

 physeos of the sphenoid. It is composed of a prehypo- 

 physeal and posthypophyseal portion. The former is developed 

 from the buccal cavity; the latter of a neural origin, develop- 



