Bulwark against horror of death, 376 Bum, 396 Buffon, 276 Burbank, 16 Burton, 268 Business, the narcotic of, 153 Buttocks, 317 Caesar, 127 Calculation in love, 111 Calyx, 116 Capitalism, evolution of, 141 Capryl odors, 98 Career of prostitute, 332 Castrates, 186 Castration, 344; in incest, 251; for prevention of conception, 364 Categorical imperative, 383 Catherine de Medici, 263 Cause of drink, 153 Causes of masturbation in children, 167 Cell-hunger, 114 Cells—exhausted, 112; abundance of reproductive, 381 Central spindle, 63 Centre—of sex, 77, 78, 80, 81, 106; of truth, 177 Centres—growth of generative, 108; nervous, male, 39; female, 55 Centrosome, 61 Cerebrasthenia, 200; e abusu sexuali, 351 Cervix—anatomy, 50; erection, 87, 89; ulceration of, 174 Chain of sex-activity, 111, 174 Change—of bodily characteristics in America, 15; of female genitals, 362; of woman’s psyche, 306 Character of masturbator, 171, 172 Characteristics, secondary, 84, 108, 137, 327 Charity, 339 Chassaignac, 402 Chastity, 177; female, 232, 388; health in, 402; male, 392; in marriage, 350; violated, 158 Chemotropismus, erotic, 124, 130, 275 Chevalier, 284, 285 Child of love, 135 Children—attachments of, 110, 324; education of, 318; erethism in, 106; exposure of, 339; jealousy in, 106; love of, 105; modesty of, 106; sex-instinct, 106 Chilodon, 113, 274 Chlorosis and marriage, 362 Chorda dorsalis, 19 Christianity and sexuality, 5; defectives and, 339; Judaism, 371 Chromatin, 61 Chromosomes, 61, 135 Church and abstinence, 6 Chyle, 103 Cicero, 405 Cimon, 250 Circle, essence of, 381 Circulation, 92 Circumcision—acquired characteristic, 16; phallic ritual of, 3 Civilization, 373; meaning of, 377; metallic basis of, 373; period of, 385; war and, 373 Clan, intermarriage within, 386 Clandestine—love, 157; vice, 400 Cleopatra, 250 Climacterium, 209 Climax of act, 357 Clitoris, 28, 44, 90, 237, 289; emblem of, 3; libido in anomalies of, 185; in orgasmus retardatus, 220; at puberty, 182 Cloaca, 20, 22, 26 Clothes—female, 307; in homosexuality, 287; irradiation of sex, 7; in transvestism, 301 Coccygodynia, 352 Coeducation, 335 Coelom, 19 Coitus interruptus, 360 Colic, spermatic, 201 Colliculus, 36; in excesses, 169; hypertrophy of, 200, 201; in nocturnal erections, 177; physiology of, 72, 75, 82 Colonial protozoa, 114 Column, a sex-symbol, 3 Communal marriage, 383 Complement, soul’s, 376 Conception—favorable time of, 349; in intermenstrual period, 349, 358; prevention of, 340; in rape, 360 Confinement—intercourse after, 356; libido after, 184, 213