Skin Color of Mulattoes

Posted in Articles, Health/Medicine/Genetics, Media Archive, United States on 2011-01-14 22:14Z by Steven

Skin Color of Mulattoes

Journal of Heridity
Volume 5, Number 12 (December 1914)
pages 556-558

Charles B. Davenport, Director
Department of Experimental Evolution
(Carnegie Institution of Washington)
Cold Spring Harbor, Long Island, New York

Apparently Four Factors Involved—Segregation in Second Generation—Skin Pigment Developed After Birth—No Correlation Between Color of Skin and Curliness of Hair in Offspring of Mulatto Marriages.

The method of heredity in negro-white crosses has long been cited as a demonstration of the failure of modern principles of heredity in their application to some specific cases. Skin color is said to show a typical blending, as in the mulatto, and it is generally assumed that all of the offspring of two mulattoes resemble their parents in skin color; and if a mulatto be crossed with a white that all of the offspring will be of a shade still lighter than the mulatto parent, namely, of a quadroon color. The current theory also has a great social importance because according to it, “once a negro, always a negro;” since the negro characteristics can not be wholly eliminated even by successive matings with white. However, as a concession, certain States even in our South permit the offspring of a person containing one-eighth negro blood and a pure white to pass as a white citizen and to marry, legally, a white person. That is, after matings of a mulatto and her offspring for two further generations with white persons the final generation may pass for white…

VARIATION IN MULATTO PROGENY
The family of a white man of colored ancestry, and a mulatto woman. All seven sons and daughters are shown in the photograph. The infant is the lightest, with 8% black in the skin; this will doubtless darken with age. The son at the extreme right of the picture has 22% black in his skin; the boy at the extreme left has 26% black. (Fig. 17.)

 

OFFSPRING OF WHITE X MULATTO MATING
Part of the “W” family, including a medium colored mother and six of her seven children by a white man; also a little first cousin of the other children, who is directly in front of the mother. Note the great variation in the facial coloration of full brothers and sisters. The skin color of the youngest child is the same as that of a typical white infant, namely, 5% black, whereas the oldest boy of the group has a skin color of 32%black, considerably darker than his mother. (Fig. 18.)

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