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. 



FlQ. 275. — A, Cerebrum of a female Chimpanzee two years old. xj. (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 centralis. B, 

 Brain of a female Chimpanzee two years old. x \. (Lateral aspect.) ch. Cere- 

 bellum ; c.c\ c.c", anterior and posterior central convolutions ; fr, frontal lobe; /.s, 

 fissura Sylvii ; is, island of Eeil ; ind, 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 



