SEXUAL SELECTION IN RELATION TO MAN 721 



sagittal crest, which is absent in the female j"a3ra 'Jfiisker 

 found a trace of a similar difference between the two sexes 

 in the Australians.* With monkeys, when there is any dif- 

 ference in the voice, that of the male is the more powerful. 

 We have seen that certain male monkeys have a well- 

 developed beard, which is quite deficient or much less de- 

 veloped in the female. No instance is known of the beard, 

 whiskers, or mustache being larger in the female than in 

 the male monkey. Even in the color of the beard there 

 is a curious parallelism between man and the Quadrumana, 

 for with man, when the beard differs in color from the hair 

 of the head, as is commonly the case, it is, I believe, al- 

 most always of a lighter tint, being often reddish. I have 

 repeatedly observed this fact in England; but two gentle- 

 men have lately written to me, saying that they form an 

 exception to the rule. One of these gentlemen accounts for 

 the fact by the wide difference in color of the hair on the 

 paternal and maternal sides of his family. Both had been 

 long aware of this peculiarity (one of them having often 

 been accused of dyeing his beard), and had been thus led 

 to observe other men, and were convinced that the excep- 

 tions were very rare. Dr. Hooker attended to this little 

 point for me in Eussia, and found no exception to the 

 rule. In Calcutta, Mr. J. Scott, of the Botanic Gardens, 

 was so kind as to observe the many races of men to be 

 seen there, as well as in some other parts of India, namely, 

 two races in Sikhim, the Bhoteas, Hindus, Burmese and 

 Chinese, most of which races have very little hair on the 

 face; and he always found that when there was any differ- 

 ence in color between the hair of the head and the beard, 

 the latter was invariably . lighter. Now with monkeys, as 

 has already been stated, the beard frequently differs strik- 

 ingly in color from the hair of the head, and in such cases 

 It is always of a lighter hue, being often pure white, some- 

 times yellow or reddish. '" 



• "Anthropolog. Rev.," Oct. 1868, p. 358. 



'<> Ht. Blyth roforms me that he has only Been one instance of the beard. 



