viii.
[115] A full and interesting account of Hoessli and his book is given by Karsch in the _Jahrbuch fuer sexuelle Zwischenstufen_, Bd.

v, 1903, pp.
449-556.
[116] "Eugen Duehren" (Iwan Bloch) remarks, however (_Neue Forschungen ueber den Marquis de Sade und seine Zeit_, p.

436), that de Sade in his _Aline et Valcour_ seems to recognize that inversion is sometimes inborn, or at least natural, and apt to develop at a very early age, in spite of all provocations to the normal attitude.

"And if this inclination were not natural," he makes Sarmiento say, "would the impression of it be received in childhood ?...

Let us study better this indulgent Nature before daring to fix her limits." Still earlier, in 1676 (as Schouten has pointed out, _Sexual-Probleme_, January, 1910, p.