126 MAN AND APES. 



respect, the most inhuman of all Primates. 

 The proportion as to length borne by the foot 

 to the hand is more human in the short-tailed 

 Indris than in any other Primate; while, of 

 the latisternal apes, the Gibbons are the least 

 human, and the Orang the most so ; the last 

 named, however, not being nearly so human 

 as is the short-tailed Indris. 



The ankle-bones form what is called the 

 tarsus, and are seven in number, namely, 

 the astragalus, calcaneum, cuboides, naviculare, 

 and three cuneiform bones. 



None of them can ordinarily be called 

 " long bones." The astragalus receives the 

 weight of the trunk from the shin-bone ; the 

 calcaneum (or os calcis) forms the prominence 



of the heel. 



In the genera Galago, Cheirogaleus, and espe- 

 cially in Tarsius, the os calcis and naviculare 

 are so extraordinarily produced as to become 

 "long bones" — thus adding another segment 

 to the limb. 



In man the ankle-bones form a larger 



