ON THE BRAIN OF ATELES PANISCUS 499 
xx ec 
Fig. 1.—Transverse sections of corresponding (left) cerebral hemispheres of Man (A, B, C, 
D, E) and of Ateles (.\’, B’, C’, D’, E’), taken perpendicularly to the plane of the corpus 
callosum, along the lines marked with corresponding letters in Fig. 2. 2 calcarine 
sulcus ; 7. collateral sulcus ; 2. calloso-marginal ; 4, occipito-parietal sulcus; ¢. ~. pos- 
terior cornu ; x. hippocampus minor ; -rv. hippocampus major. A—D, A’—D’ viewed 
from behind ; E and E’ from in front. 
kK K 2 
