Jacoby (loc. cit. pp. 796-7) gives a large number of references to Ovid's works bearing on this point. "In reading him," he remarks, "one is inclined to say that the psychology of the Romans was closely allied to that of the Chinese."
R. Kleinpaul, Sprache ohne Worte, p. 308. See also Moll, Konträre Sexualempfindung, third edition, pp. 306-308. Bloch brings together many interesting references bearing on the ancient sexual and religious symbolism of the shoe, Beiträge zur Ætiologie der Psychopathia Sexualis, Teil II, p. 324.
Jacoby (loc. cit. p. 797) appears to regard shoe-fetichism as a true atavism: "The sexual adoration of feminine foot-gear," he concludes, "perhaps the most enigmatic and certainly the most singular of degenerative insanities, is thus merely a form of atavism, the return of the degenerate to the very ancient and primitive psychology which we no longer understand and are no longer capable of feeling."