1933 Eugenics and Sex Harmony the Sexes, Their Relations and Problems 1st Ed

Eugenics and Sex Harmony was written in 1933 by Herman H. Rubin, MD, a prominent physician, and eugenicist.

The book was intended to explain basic concepts of sexual reproduction to Americans who, as Pugh's foreword noted, were largely uneducated about such matters.

Rubin introduced readers to the ideas of sexual selection and eugenics, explaining his belief that physical and mental traits could be inherited, not just directly from parents, but from prior generations as well.

A large section of the booklet discussed the potential consequences of absorbing the Black race into the Caucasian.

Rubin, who considered stereotypical racial characteristics to be heritable traits, lamented the possibility that African American folk culture would be lost to the world should such miscegenation occur, predicting that their genetic heritage would be diluted by Nordic genes.