Psychopathia sexualis avec recherches spéciales sur l'inversion sexuelle

First French edition, translated by Emile Laurent and Sigismond Csapo from the eighth German edition. While the first German edition contained only 45 clinical cases, it exceeded 200 cases in the later editions.
Contemporary half cloth binding with ochre corners. Smooth Jansenist spine. Grenat shagreen title-label with minor lacks and rubbing. Traces of rubbing to headcaps and joints. Spine slightly darkened. Cloth rubbed at corners.
The rare original wrappers have been preserved. Good copy, free from foxing.
Bookplate, red morocco roundel with armorial device, bearing the motto: Stephanus semper.
Foundational work of sexology, in which Psychopathia describes for the first time in a clinical and scientific manner the various sexual anomalies (sadism, masochism, fetishism, zoophilia...). Freud, who regularly received inscribed copies of Krafft-Ebing's works, owned the 5th, 7th, 9th and 11th editions of Psychopathia Sexualis, precious sources of information in the exchange and cross-pollination of ideas that animated researchers of that era in the field. Krafft-Ebbing, a psychiatrist teaching at the University of Vienna, deliberately gave his work a Latin medical title to discourage the merely curious.