NERVOUS SYSTEM OF VERTEBRATES. 



3 I 



FIG. 46. Diagrams to represent the extent and arrangement of the functional 

 divisions in the brain of a selachian. A, projection upon the mesial plane; B and 

 C, sections taken at the levels indicated by the arrows. C. g., corpus geniculatum. 

 ., superior secondary gustatory nucleus. Other legends and symbols are ex- 

 plained in the figure. Compare with Figure n. 



