rower at the bottom than at the top, so that the nostrils con¬ 
verge towards the bottom, while in the Platyrrhini the cartil¬ 
age is of the same breadth throughout and the nostrils are 
therefore parallel. The dentition of the first group is the 
same as that of man, being eight incisors, four canines, and 
twenty molars. 
The monkeys are classed in the same order— Primates —as 
man, the correspondence in mere structure being very close, 
amounting, in some of the higher groups, to modifications 
only of form. All the man-like or Anthropoid Apes—the 
Gorilla and Chimpanzee of Africa, and the Orang and Gib¬ 
bons of India—belong to the first division. These apes can 
