Die Konträre Sexualempfindung.

The first "scientific" paper on homosexuality. In this paper the psychiatrist Westphal described two cases at length: "The first was of a young woman who from her earliest years liked to dress as a boy and engage in boys' games and who found herself attracted only to women; the second was of a man who wanted to wear women's clothes and act the part of a woman. In attempting to give a diagnostic category to these cases Westphal coined the phrase Konträre Sexualempfindung, usually translated as 'contrary sexual feeling' " (Bullough, Science in the bedroom: A history of sex research [1994] 38).