PLATE 7 



EXPLANATION OF FIGURES 



26 A model of the infundibular process and hypophysial components of a 43/0.1 

 albino frog tadpole (specimen 18), fixed 101 days after epithelial hypophysectomy. 

 Liver diet. The caudal end of the infundibular process faces the top of the page. 

 a, dorsal, b, ventral, c, median sagittal, views. X89. 



27 A model of the infundibular process and hypophysial components of a 36/4.2 

 'partial' albino frog tadpole (specimen, p 1), fixed 66 days after the operative stage. 

 Liver diet. The caudal end of the infundibular process faces the top of the page, 

 o, dorsal, 6, ventral, c, median sagittal, views. X89. 



126 



