. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings. 196 The Descent of Matt. Pass? L although larger than freckles, and that these patches were nevei affected by sun-burning, whilst the white parts of his skin have on several occasions been much inflamed and blistered. With the lower animals there is, also, a constitutional difference in liability to the action of the sun between those parts of the skin clothed with white hair and other Whether the saving of the skin from being thus burnt is of sufficient impor- tance to accoun
. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings. 196 The Descent of Matt. Pass? L although larger than freckles, and that these patches were nevei affected by sun-burning, whilst the white parts of his skin have on several occasions been much inflamed and blistered. With the lower animals there is, also, a constitutional difference in liability to the action of the sun between those parts of the skin clothed with white hair and other Whether the saving of the skin from being thus burnt is of sufficient impor- tance to account for a dark tint having been gradually acquired by man through natural selection, I am unable to judge. If it be so, we should have to assume that the natives of tropical America have lived there for a much shorter time than the negroes in Africa, or the Papuans in the southern parts of the Malay archipelago, just as the lighter-coloured Hindoos have resided in India for a shorter time than the darker aborigines of the central and southern parts of the peninsula. Although with: our present knowledgejwe cannot account for the differences of colour in the races of man, through any advantage thus gained, or from the direct action of climate; yet we must not quite ignore the latter agency, for there is good reason to believe that some inherited effect is thus produced^6 |" We have seen in the second chapter that the conditions of life j affect the development of the bodily frame in a direct manner, I and that the effects are transmitted. Thus, as is generally / admitted, the European settlers in the United States undergo a I slight but extraordinarily rapid change of appearance. Their bodies and limbs become elongated; and I hear from Co/. Bernys that during the late war in the United States, good evidence was afforded of this fact by the ridiculous appearance presented by the German regiments, when dressed in ready-made clothes manufactured for the American market, and which
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