40 



GORILLAS AND CHIMPANZEES 



eyebrows, and each hair appears to diverge from a 

 common centre like the radii of a sphere : another of 

 the same species will have the hair parted in the 

 middle as neatly as if it had been combed, while 

 another may have it in wild disorder. The same 

 thing is noticed in certain monkeys, and it is equally 

 true of the human being. As a factor in classifying 

 them it signifies nothing. It may be remarked that 

 as a whole the kulu is inclined to have little hair 

 upon the crown of the head. 



Between the two species there is a close alliance, 

 but the males differ more than the females. This is 

 especially true in the structure of certain organs. 



The face in youth is quite free from hairs, but in 

 the adult state there is, in both sexes, a slight ten- 

 dency to grow a light down over the cheeks. 



The colour of the skin is not uniform in all parts 

 of the body, especially on the face. . Some specimens 

 have patches of dark colour set in a lighter ground. 

 Sometimes certain parts of the face will be dark, and 

 other parts light. I have seen one specimen quite 

 freckled. 



It is said by some that the skin is light in colour 

 when young, and becomes darker with age, but such 

 is not the case. It is true that the skin darkens a 

 few shades as the cuticle hardens, but there is no 

 transition from one colour to another, and this slight 

 change of shade is only on the exposed parts. 



The kulu has a short, round face, very much like 

 that of a human. In early life it is quite free from 

 hairs, but, like the other, a slight down appears with 



