38 



ON THE AFFINITIES AND DIFFERENCES BETWEEN THE 



Fig. i a. — Brain of Dog, Canis familiar is, dissected so as to show its biradiate lateral 

 ventricle. The right cerebral hemisphere has been remo\ed to a level with the corpus 

 callosum. C. 0. cerebral hemisphere ; C. cerebellum ; C. 0. corpus callosum ; C. a. hip- 

 pocampus major, cornu ammonis ; C. S. corpus striatum. 



Fig. i &.— Brain of Vervet Monkey, Cercopithecus lalandii, similarly prepared, but 

 with the left hemisphere entirely removed. The posterior edge of the corpus callosum 

 is seen not to reach so far back as to overhang the corpora quadrigemina. C. Q. corpora 

 quadrigemina ; F. I. internal perpendicular fissure ; F. H. fissure of the hippocampi ; 

 H. M. hippocampus minor. 



