_Numa Praetorius_, that thorough expert on homosexuality, relates: “In many cases homosexual deeds are committed under the influence of alcohol. Thus, for instance, I know a former police officer, a homosexual, who when drunk attempts homosexual deeds upon heterosexual comrades, who excite him, although he is acquainted with the homosexual circle, is intimate with many homosexuals, and in his sober state he carries out relations only with persons with whom he is safe. On account of these attacks on heterosexual persons during his drunken condition he has lost his position as police officer as well as his later position in a factory. “Another homosexual, a merchant, thirty years of age, when drunk finds this inclination uncontrollable and has tackled the wrong persons while in that state. There is a great deal of truth in the contention that during the inebriate state man’s true character comes to surface,—at any rate his true sexual character certainly reveals itself in that state, since the customary inhibitions are curtailed. Here ‘_in vino veritas_’ certainly holds true.” (_Jahrbuch f. Sexuelle Zwischenstufen_, Vol. VIII.) These cases, with the exception of the first, show only an increase of an already existing homosexual inclination otherwise under control. But frequently it happens that heterosexual persons carry out their first homosexual aggression during the inebriate state. Thus _Praetorius_ remarks in another passage: “As is disclosed in various published biographies as well as in certain communications which have reached me orally, there are young persons, otherwise apparently normal in feeling and conduct, who when drunk are attracted to their own sex with a great feeling of pleasure thus disclosing more than a pseudo-homosexual attitude. But their proper heterosexual nature does not appear to be changed materially by these occasional homosexual episodes and emotional sprees.” _Hugo Deutsch_[30] has reported a very instructive case, which, although far from unique, as the author believes, may be mentioned in this connection: