BRAIN OF CHIMPANZEE 



577 



to be distinguished from the Gorilla by the characters mentioned 

 in the account of the latter animal. Briefly summed up they 



fr. 



v 



Fro. 275. A, Cerebrum of a female Chimpanzee two years old. x J. (Dorsal aspect, 

 showing asymmetrical development.) c.c', c.c", Anterior and posterior central con- 

 volutions ; f.i, interparietal fissure ; f.l, the longitudinal fissure ; f.po, parieto- 

 occipital fissure ; fr, frontal lobes ; oc, occipital lobes ; s.c, sulcus central is. B, 

 Brain of a female Chimpanzee two years old. x J. (Lateral aspect.) cb, Cere- 

 bellum ; c.c', c.c", anterior and posterior central convolutions ; fr, frontal lobe; /.*, 

 fissnra Sylvii ; is, island of Reil ; md, medulla oblongata ; oc, occipital lobe ; pa, 

 parietal lobe ; s.c, sulcus centralis ; tp, temporal lobe. (From Wiedersheim's 

 Structure of Man.) 



are mainly as follows : The ears are large, and generally stand 

 out from the head ; but there are exceptions to be noted pre- 

 VOL. x 2 P 



