Studies in the Psychology of Sex, Volume 5: Erotic Symbolism; the Mechanism of Detumescence; the Psychic State in Pregnancy

One of the earliest serious scientific investigations into the mechanics of human desire. Havelock Ellis, writing in 1906, approached sexuality with the same rigor applied to any biological phenomenon, cataloguing and analyzing what others would not even name. This fifth volume tackles three interconnected subjects: erotic symbolism (what happens when attraction fixates on objects, body parts, or acts rather than persons), the psychology of sexual release, and the emotional landscape of pregnancy. Ellis observed that human sexual response rarely follows the paths convention expects, and he documented the variations with clinical detachment rather than moral judgment. The chapters on foot-fetishism, exhibitionism, and what he termed 'scatological symbolism' read as Victorian-era attempts to map territory that would not be properly charted until Kinsey a generation later. What emerges is not prurience but a genuine attempt to understand why humans desire what they desire, and how biological urges intersect with psychological states. For readers interested in the history of sexuality as a field of study, or in how taboos get slowly, carefully dismantled through scholarship, this remains a foundational document.