302 



PHYSIOLOGICAL SERIES. 



avoiil extermination. Hence the "organ of associative 

 inr nory," tint neopallium, l)ecoinesot' vital importance, ami 

 becomes, for an Ungulate, disproportionately great. 



The posterior parts of the, large cerebral hemispherea 

 have expanded laterally rather than longitudinally, and 

 hence the enormous cerebellum remains almost whollv 

 uncovered a fact to which an altogether undue importance 

 is usually attache;! as an index of cerebral greatness. The 



Fig. 172. 



OLF. BULB. 



SULC.ORB.ACCES. 



SULC.ORB. 

 / 



PIT. BODY. 



QLIV.BODY 



"FLOC. 



anterior part of the hemispheres, however, remain- narrow 

 and pointed, as in most Mammals. 



The cerebellum increases pari passu with the eerehrnm. 

 and. in spite of the fact that the organ is built up < 

 tially on the I'n-ulate plan, it comes to assume a striking 

 ml r.-rmblanee to the human eerebelbim. The tloc- 

 cular lobes, of course, do not shar- in this grealne>-. Tip 

 pon- Varolii al-o as-unies an appearance closely resembling 



