Chap. XIX. Man — Law of Battle, 561 



but occasionally there may be seen a man, who has neglected to 

 pluck out the hairs at puberty, with a soft beard an inch or two 

 in length. The Guaranys of Paraguay differ from all the 

 surrounding tribes in having a small beard, and even some hair 

 on the body, but no whiskers. 19 I am informed by Mr. D. 

 Forbes, who particularly attended to this point, that the Aymaraa 

 and Quichuas of the Cordillera are remarkably hairless, yet in 

 old age a few straggling hairs occasionally appear on the chin. 

 The men of these two tribes have very little hair on the various 

 parts of the body where hair grows abundantly in Europeans, 

 and the women have none on the corresponding parts. The 

 hair on the head, however, attains an extraordinary length in 

 both sexes, often reaching almost to the ground ; and this is 

 likewise the case with some of the N. American tribes. In the 

 amount of hair, and in the general shape of the body, the 

 sexes of the American aborigines do not differ so much from 

 each other, as in most other races. 20 This fact is analogous 

 with what occurs with some closely allied monkeys; thus the 

 sexes of the chimpanzee are not as different as those of the orang 

 or gorilla. 21 



In the previous chapters we have seen that with mammals, 

 birds, fishes, insects, &c, many characters, which there is every 

 reason to believe were primarily gained through sexual selection 

 by one sex, have been transferred to the other. As this same form 

 of transmission has apparently prevailed much with mankind, 

 it will save useless repetition if we discuss the origin of cha- 

 racters peculiar to the male sex together with certain other 

 characters common to both sexes. 



Law 0/ Battle.— With savages, for instance the Australians, the 

 women are the constant cause of war both between members of 

 the same tribe and between distinct tribes. fSo no doubt it was 

 in ancient times ; " nam fuit ante Helenam mulier teterrima belli 

 " causa." With some of the North American Indians, the con- 

 test is reduced to a system. That excellent observer, Hearne, 2 * 



19 Catlin, 'North American In- 21 Riitimeyer, 'Die Grenzen "der 

 4ians,' 3rd edit. 1842, vol. ii. p. 227. Thiervvelt ; eine Betrachtuug zu 

 On the Guaranys, see Azara, ' Voy- Darwin's Lehre,' 1868, s. 54. 



ages dans l'Ame'rique Mend.' torn. 22 'A Journey from Prince of 



ii. 1809, p. 58; also Rengger, Wales Fort.' 8vo. edit. Dublin, 1796, 



1 Saugethiere von Paraguay,' s. 3. p. 104. Sir J. Lubbock (' Origin of 



20 Prof, and Mrs. Agassiz (' Jour- Civilisation,' 1870, p. 69) gives 

 uey in Brazil,' p. 530) remark that other and similar cases in .North 

 the sexes of the American Indians America. For the Guanas of S 

 differ less than those of the negroes America see Azara, ' Voyages,' &u 

 and of the higher races. See also torn. ii. p. 94. 



Rengger, ibid. p. 3, on the Guaranys. 



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