PINEAL 

 GLAND 



CEREBRUM 



OLFACTORY LOBE 



CEREBRUM 



OPTIC LOBE 



CEREBELLUM 



MEDULLA 

 OBLONGATA 



OLFACTORY LOBE 



FISH 



CEREBRUM 



OPTIC LOBE 



OLFACTORY LOBE 



MEDULLA 

 OBLONGATA 



AMPHIBIAN 



PINEAL GLAND 



CEREBELLUM 



MEDULLA OBLONGATA 



REGION OF OPTIC LOBES 



REPTILE 



CEREBRUM 



OPTIC LOBE 



CEREBELLUM 



MEDULLA OBLONGATA 



PITUITARY BODY 



MAN 



BIRD 



Fig. 148. — Comparison of vertebrate brains. Dorsal views, except that of the 

 human brain, which has been sectioned longitudinally. Compare the relative size 

 of the various parts throughout the series. 



