" physiological, 112 " spontaneous, 31 " ancient theory of, 32 Gestation, duration of, 66 Girlhood, 471 Girls, a chapter for, 470 " causes which lead astray, 484 " how ruined, 493 Gluttony, 292 Habit, power of, 496 Health essential to beauty, 474 Health hints, 88, 93 Heart disease, 367 Heredity, 102 " laws of, 243 " of disease, 109 " of crime, 107 Hermaphrodism, 36 Hermaphrodites, fecundation in, 59 Hip bath, 93 Human machine, the, 423 Human wrecks, 437 Human form, 474 Human buds, 476 Husbands, improvident, 170 Hybrids, 100 Hymen, 73 Hysteria, 95, 343 " causes of, 96, 375 Idiocy, 371 " cause of, 433 Idleness, 189 Ignorance, 300 Ill-health of girls, causes of, 472 Illustrative cases, 437 Imbecility, 371 Impotence, 363, 410 " not produced by continence, 207 Infanticide, 271 " among various nations, 273 Infant intoxication, 70 Infants, betrothal of, 138 Insanity, 370 " cause of, 447, 490 Instinct, lessons from, 220 " a safe guide, 224 Internal emissions, 361 Intestinal worms, 202 Juke family, the, 108 Labia, the, 73 Labor, 68 Lacing, 90 Law of heredity applied, 126 " of sex, 101 Legalized murder, 233 " vice, 309 Leucorrhoea, 346 Libidinous blood, 290 Licentious worship, 287 Licentiousness, results of, 302 Life, 25 " beginning of, 52 " force, 29 " origin of, 33 " modern modes of, 203 " when it begins, 262 " uterine, 66 Literature, poisonous, 189 Living beings, 25 Love, perverted, 178 Lust, effect upon child, 111 Male organs, 71 " continence, 256 Mammary glands, 70 Marriage, 124, 402 " evils of ill-mated, 131 " effect of late, 132 " experimental, 141 " forbidden, 155 " of cousins, 163 " of criminals, 164 " of paupers, 167 " but not love, 235 " customs of different nations, 125 Marital excesses, 216 " rights, 234 Masturbation, 315, 428 " treatment of, 378 " prevention of, 378 " effects in females, 373 " effects on offspring, 376 " self-helps to cure, 385 Menopause, the, 82 Menorrhagia, 91 Menses, 81 Menstrual period, duration of, 82 Menstruation, 81 " nature of, 83 Mental unchastity, 174 " culture, 313 Milk, influence of upon children, 70 Mind, cause of unbalanced, 129 Mormonism, 148 Monsters, 99 Mock piety, 338 Moderation, 248 Modesty, 488 Mothers, a warning to, 201 " their work, 479 Moral contagion, 459 Moving apparatus, 425 Multiple births, 98 Navel, the, 68 Nervous diseases, 368 " debility, treatment of, 378 Nocturnal emissions, 353 Novel-reading, 486 Nursing, 70 Nutrition, 30 Nutritive apparatus, 425 Nymphae, the, 73 Nymphomania, 301 Objects of life, 423 Obscene books, 187 Obscenity, 462