[815] Havelock Ellis and J. A. Symonds, “Contrary Sexual Sensibility.”
[816] Albert Moll, “Contrary Sexual Sensibility,” third edition (Berlin, 1899).
[817] J. Chevalier, “L’Inversion Sexuelle,” with a preface by A. Lacassagne (Lyons and Paris, 1893).
[818] Laupts, “Perversion et Perversité Sexuelles,” preface by Émile Zola (Paris, 1896). (Containing interesting critical, literary, and medical studies upon the subject of homosexuality.)
[819] Havelock Ellis, “Studies in the Psychology of Sex,” vol. v.: “Erotic Symbolism, etc.” (Philadelphia, 1906).
[820] Apart from “Man and Woman” (fourth edition, 1904, revised and enlarged), all Havelock Ellis’s writings on sexual questions are included in the “Studies in the Psychology of Sex,” 5 vols. (sixth concluding volume not yet completed), published by the F. A. Davis Company, of Philadelphia, U.S.A.—Translator.
[821] A. Moll, “Investigations regarding the Libido Sexualis,” Part I. (Berlin, 1897).
[822] Charles Féré, “L’Instinct Sexuel, Évolution et Dissolution” (Paris, 1899).
[823] Otto Rank, “The Artist: Contributions to Sexual Psychology” (Vienna and Leipzig, 1907).
[824] August Forel, “The Sexual Question” (Rebman, 1908).