Mixed Race Studies

A Critical Discussion of the “Mulatto Hypothesis”

The Journal of Negro Education
Volume 3, Number 3, The Physical and Mental Abilities of the American Negro (July, 1934)
pages 389-402

Melville J. Herskovits (1895-1963)

The Two “Mulatto Hypotheses”

What is the “mulatto hypothesis?” The phrase may be used to indicate a point of view concerning the desirability or undesirability  of racial crossing, wherever this has occurred, and between whatever peoples it has taken place. The question as to the character of the hypothesis itself, however,  is somewhat difficult to answer, for there is not one position but two taken on the matter. Since each of these two positions, which are diametrically opposed, claim support from the findings of studies made on human and animal populations, it is important that they be differentiated at the outset of our discussion. The first of them holds that racial crossing is pernicious in its effects; the second maintains that inbreeding is inadvisable, since new strains must be introduced into a population if fertile, virile offspring are to be assured. Any consideration of these two “mulatto hypotheses,” then, must range beyond the confines which would be set if The Two “Mulatto Hypotheses” What is the “mulatto hypothesis?” The phrase may be used to indicate a point of view concerning the desirability or  undesirability  of racial crossing, wherever this has occurred, and between whatever peoples it has taken place. The question as to the character of the hypothesis itself, however,  is somewhat difficult to answer, for there is not one position but two taken on the matter. Since each of these two positions, which are diametrically opposed, claim support from the findings of studies made on human and animal populations, it is important that they be differentiated at the outset of our discussion. The first of them holds that racial crossing is pernicious in its effects; the second maintains that inbreeding is inadvisable, since new strains must be introduced into a population if fertile, virile offspring are to be assured. Any consideration of these two “mulatto hypotheses,” then, must range beyond the confines which would be set if only Negro-white crossing were studied, while such a consideration must similarly include not only a discussion of the results of crossing on the intellectual capabilities of mixed-bloods, but also on their physical potency and social efficiency.

The first of the two positions has perhaps been best phrased by Gates, who is one of its strongest proponents:

Crossing in mankind may be regarded as of three types: (1) Between individuals of the same race. (2) Between different, but nearly related, races; e.g., between the Nordic, Mediterranean and Alpine or East Baltic races, or between different African tribes, or Chinese and Japanese stocks. Such intercrossing goes on continually without causing comment or raising serious problems. (3) Between more distantly related races. Here we might again distinguish (a) crosses between two primitive or two advanced races from (b) crosses between an advanced and a primitive stock. It is only the last type which raises serious difficulties, and is probably undesirable from every point of view. Of course there is no sharp line between the most advanced and the most primitive races, but all intergrades occur. Nevertheless, the distinction I have drawn is certainly an important one.

This author there upon devotes some pages to a discussion of the studies that have been made on human crossed groups. Thus a study made by MacCaughey is quoted concerning the results of mixture in the “microcosmic melting-pot” of Hawaii, with the conclusion

…that such racial intermingling is usually undesirable in its results. Most of the Hawaiian-white hybrids seem to combine the least desirable traits of both parents, and intermarriages of North European and American stocks with dark-skinned races are considered biologically wasteful.

Lundborn is similarly quoted as concluding, on the basis of studies made in Sweden, “that the crossing of races degenerates the constitution and increases degradation.” After considering such studies, Gates summarizes….

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