Homosexuality - The Testicles
  The theory according to which homosexuality resides in the testicles rather than in the head, may be traced back to Eugen Steinach. He created articifial transitions in guineapigs by means of castration and subsequent testicle and/or ovary transplantation. He reported that the testicles regulated the development of male sexual characteristics, including sexual behaviour, and, in fact, not through the sperm-producing part, but, rather, the hormone-producing intercellular tissue.

In 1919, Steinach believed he had discovered "male" cells in the ovaries of a "homosexual" goat. From then on, he and the Institute's scientists maintained there were "female" cells in the testicles of homosexuals and "male" cells in the ovaries of homosexual women. After studying the testicles of homosexual men, Hirschfeld concluded they revealed deviations.
He collected testicle specimens, the origins of which are unknown.

By castrating homosexual men and implanting "heterosexual" testicle segments, several surgeons (i. e. Richard Mühsam) attempted to "switch the polarity" of homosexuals. Even Hirschfeld referred patients for such operations, which were to be proven "unsuccessful" later. No criticism of the testicle transplantations by Institute staff members has been recorded.

picture examples:
 1    2 
  next text >