VAN DE VELDE, Theodoor Hendrik
Het volkomen huwelijk. Een studie omtrent zijn physiologie en zijn techniek: voor den arts en den echtgenoot geschreven.Leiden: Leidsche Uitgeversmaatschappij, 1926.
English translation: Ideal Marriage: Its Physiology and Technique. (1930). The first printing had an insert: "The sale of this book is strictly limited to members of the medical profession, Psychoanalysts, Scholars, and to such adults as may have a definite position in the field of Physiological, Psychological, or Social Research." In its different editions and translations over the nearly 100 years since it was published, it is possible that this work sold more copies than virtually any other book in this bibliography.
Subjects: SEXUALITY / Sexology
Sex efficiency through exercises. Special physical culture for women, with 480 cinematographic and 54 full-page illustrations.London: William Heinemann, 1933.
Includes a series of 12 "cinematographic" films on 480 flicker cards. In all the photographs frontal nudity of the female model is covered by clothing, though her buttocks are exposed in some views.
Subjects: IMAGING › Photography / Photomicrography , PHYSICAL MEDICINE / REHABILITATION › Exercise / Training / Fitness, SEXUALITY / Sexology