The search for artificial means of enhancing sexual experience is timeless and can even be found in the opening passages of Genesis (3:7) where Adam and Eve discovered sex as they took a bi te of the forbidden fruit: "And the eyes of them both were opened, and they knew that they were naked. " While others may interpret the "opening of their eyes" as simply an awareness of male and femaleness, John Milton and others regarded the forbidden fruit as an aphrodisiac and in Paradise Lost, described in greater detail what happened: "But the false fruit For other operation first displayed Carnal desire infiarning. He on Eve Began to cast lascivious eyes; she hirn As wantonly repaid; in lust they burn. " Not only did Milton regard the "forbidden fruit" as an aphro­ disiac, he also identified it as an apple, and an apple it has re­ mained until this day. Sexual behavior has always been one of the most fascinating and attention-arresting activities in human history and there has been no decrease in the fascination and curiosity it still arouses in the human psyche. 1 2 Introduction As timeless as the topic of sexual behavior is that of aphro­ disiacs. For example, after the "forbidden fmit," the Bible specifi­ cally identified mandrake as an aphrodisiac (Genesis 30:14-17): "And Reuben went, in the days of wheat harvest, and found mandrakes in the field, and brought them to his mother, Leah.