THE PITUITARY BODY 



For discussions of the evolution and comparative anatomy 

 of the pituitary the reader is referred to the papers of Herring 



sphen. 



Fig. 2. — Model of the pituitary region of a rabbit embryo i6 days old. Nasal 

 end to the left. From Atwell (1918). ^.w., brain wall; «./., pars neuralis; />./., pars 

 tuberaHs; sphen., portion of cartilage of sphenoid; st., stalk. 



(1908, 1913) and to the monographs of Stendell (1914) and 

 De Beer (1926). Diagrams of the pituitary of some verte- 

 brates are shown in Figure 3. In the tortoise, and in most 



[4] 



