I THE GIBBONS 35 



adult males, are commonly produced into two 

 crescentic, flexible excrescences, like fatty tu- 

 mours. The Chimpanzees have arms which 

 reach below the knees ; they have large thumbs 

 and great toes ; their hands are longer than their 

 fec't ; and their hair is black, while the skin of the 

 face is pale. The Gorilla, lastly, has arms which 

 reach to the middle of the leg, large thumbs and 

 great toes, feet longer than the hands, a black 

 face, and dark-grey or dun hair. 



For the purpose which I have at present in 

 view, it is unnecessary that I should enter into 

 any further minutiae respecting the distinctive 

 characters of the genera and species into which 

 these man-like Apes are divided by naturalists. 

 Suffice it to say, that the Orangs and the Gibbons 

 constitute the distinct genera, Simia and Hi/locates ; 

 while the Chimpanzees and Gorillas are by some 

 regarded simply as distinct species of one genus, 

 Troglodytes ; by others as distinct genera Trog- 

 lodytes being reserved for the Chimpanzees, and 

 Gorilla for the Enge*-ena or Pongo. 



Sound knowledge respecting the habits and 

 mode of life of the man-like Apes has been even 

 more difficult of attainment than correct informa- 

 tion regarding their structure. 



Once in a generation, a Wallace may be found 

 physically, mentally, and morally qualified to 

 wander unscathed through the tropical wilds of 



