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  • In other cases it is the vis a tergo of goading circumstance that impels the woman to break out of the groove.

    Psalms of the Sisters

  • Hence his threefold distribution of sodomy; (1) Peripheric or anatomical, caused by an unusual distribution of the nerves and their hyper├Žsthesia; (2) Luxurious, when love a tergo is preferred on account of the narrowness of the passage; and (3) the Psychical.

    The Book of The Thousand Nights And A Night

  • The vis a tergo was their only resort; and secondly, if properly applied, the methods are unexcelled and correct, both upon mechanical and physiological principles.

    Labor Among Primitive Peoples


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  • Latin from "from behind."

    March 3, 2008