vir the man virilia male sex-organs vita sexualis sex-life vitium vice volvula small vulva With this small vocabulary on hand, the author hopes every college-bred man will be able to read this treatise without difficulty. THE AUTHOR. New York, October, 1916. TABLE OF CONTENTS PART I: INTRODUCTION. Hunger and love, love and civilization, sex-worship, phallicism, yonism, mount of Venus, horseshoe, lingam, the cross, temple-courtesans, Christianity and sex, fashion and sex, female bosom, psychology of clothes, prudery, physician’s ignorance, morbid fiction, change in sex discussions. PART II: EVOLUTION OF SEX. _Chapter 1—Organic evolution._ Mechanistic and vitalistic theories, teleology, creative evolution, Lamarckism, Darwinism, variation, amphimixis, protozoa, morula, coelenterata, blastula, gastrula, primitive membranes, worms, chorda dorsalis, coelom, echinodermata, mollusca, arthropoda, vertebrates. _Chapter 2—Evolution of the genital system._ Wolffian body, cloaca, ducts of Muller, ureter, kidney, genital ridge, sex-gland, allantois, bladder, urachus, sinus urogenitalis, urethra, perineum, anal membrane, male internal sex-organs, female internal sex-organs, genital swelling, genital tubercle, groove, male external genitals, female external genitals. PART III: ANATOMY OF SEX. _Chapter 3—The male genitals._ The male genitals, scrotum, testicles, descent of testicles, vas deferens, spermatic cord, seminal vesicles, ductus ejaculatorii, urethra, prostate, colliculus, sinus pocularis, penis. _Chapter 4—Female genitals._ Mons of Venus, labia majora, minora, vestibule, bulbs, clitoris, Bartholinian glands, hymen, vagina, uterus, broad and round ligaments, tubes, ovaries, Graafian follicle, ovum. _Chapter 5—Secondary sexual characteristics._ Man’s figure, skeleton, laryngeal projection, shoulders, pelvis, limbs, skin, steps, gait, voice, woman’s figure, head, hair, face, neck, chest, abdomen, thighs, respiration. PART IV: PHYSIOLOGY OF SEX. _Chapter 6—General physiologic phenomena._ Cell-division, maturition, impregnation, mitosis, polar bodies, Mendel’s law, unit-characters, segregation, zygote. _Chapter 7—Functions of the male generative organs._ Function of testicles, spermatogenesis, maturition, function of seminal vesicles, prostate, Cowpers glands, urethral glands, semen, erection, ejaculation, nervous control, orgasm. _Chapter 8—Functions of female sex-organs._ Function of ovaries, ovum, Graafian follicle, tubes, menstruation, function of uterus, female ejaculation, function of vagina, Bartholinian glands, of clitoris, course of the sexual act. _Chapter 9—Libido sexualis._