The Psychology of Sex (Vol. 1-6). Havelock Ellis

target="_blank" rel="nofollow" href="#ulink_b3c62b5a-75fc-5d92-bcdf-af18daccae8b">[135] This was the term used in the earlier editions of the present Study. I willingly reject it in favor of the simpler and fairly clear term now more generally employed. It is true that by bisexuality it is possible to understand not only the double direction of the sexual instinct, but also the presence of both sexes in the same individual, which in French is more accurately distinguished as "bisexuation."

[136] J. Van Biervliet, "L'Homme Droit et l'Homme Gauche," Revue Philosophique, October, 1901. It is here shown that in the constitution of their nervous system the ambidextrous are demonstrably left-sided persons; their optic, acoustic, olfactory, and muscular sensitivity is preponderant on the left side.