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Start Over Collections Medicine in the Americas, 1610-1920 ✖Remove constraint Collections: Medicine in the Americas, 1610-1920 Subjects Pigmentation ✖Remove constraint Subjects: Pigmentation Titles On the pigment of the Negro's skin and hair ✖Remove constraint Titles: On the pigment of the Negro's skin and hair

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  • On the pigment of the Negro's skin and hair1