106 MAN AND APES. 



Gibbons, however, it is still larger than in 

 him ; while in the Orang its relative length 

 is much as in man. 



Both the bone of the upper arm (humerus) 

 and the bones of the fore-arm (Radius and 

 Ulna) in the Chimpanzee, when compared in 

 length with the spine, more resemble the 

 same bones in man than do those of any other 

 latisternal ape. In the length of the hand, so 

 estimated, the Gorilla is the most human, and 

 it is so in the relative length of the fore-arm 

 bones to the humerus. 



Much has been said of late as to a certain 

 perforation (Supra condyloid foramen) which 

 has been found in a certain number of ancient 

 human skeletons. Some have supposed this 

 circumstance to indicate a transition in human 

 structure from that of the higher apes. In 

 fact, however, it is not in the Gorilla, nor in 

 any of the latisternal apes, nor even in any of 

 the apes of the Old World, that we find such 

 a perforation normally developed. Such a con- 

 dition is not met with till we descend to the 



