40 ON THE AFFINITIES AND DIFFERENCES BETWEEN THE 



Fig. 2. — Brain of Marmoset, Hapale penicillata, prepared as brain of dog (fig. 

 i a). C. 0. left cerebral hemisphere ; F. 8. fissure of Sylvius ; C. S. corpus striatum ; 

 C. C. corpus callosum ; C. A cornu ammonis ; H. M. hippocampus minor ; C. T. pos- 

 terior or third cornu. 



Fig 3 «. — Brain of European, lettered and numbered after M. Gratiolet. 

 See also Fig. 3 b. 



