danger of, 495

Books, bad, 186

" obscene, 187

Brain, male and female, 42

Breasts, 70

" atrophy of the, 374

Breath, causes of foul, 89

"Bundling," 140

Cancer, cause of, 253

" of the womb, 374

Castration, 114

Catamenia, 81

Causes of unchastity, 181

Cells, development of, 104

Chastity, 174

Chlorosis, 95, 343

Cider, evil effects of, 467

Circumcision, 113, 410

Civilization, perverting influence of, 181

Classification of living creatures, 27

Clitoris, 57, 73

Coitus, 57

Colds, how to prevent, 84

Colostrum, 70

Conception, prevention of, 250

Condiments, 210, 292

Conjugal onanism, 250

Constipation, 202

Consumption, 365

" cause of, 230, 435

Continence, 205

" male, 256

" not injurious, 205

" difficulty of, 208

" helps to, 209

Conversation, trifling, 503

Copulation, 57

Courtship, 136

" evils of, 137

Courtships, long, 140

Crime, source of, 107

" cause of, 454

Criminality hereditary, 107

Critical period, a, 482

Dancing, 196

Day-dreams, 177

Desirable qualities, how to produce, 113

Development, 59, 477

" premature, 78

Development in higher animals, 61

Diet, 390

" influence on chastity, 182

Disease, 301

" obscure causes of, 376

Diurnal emissions, 359

Divorce, loose laws of, 153

Dozing, danger of, 212

Dreams, 396

" how to control, 397

Dress and sensuality, 190

Dressing unhealthfully, 89

Dress reform, 193

Drinks, stimulating, 392

Drugs, 411

Dwarfs, 431

Dysmenorrhoea, 94

Dyspepsia, 366

" cause of, 434

Early associations, 314

" marriage, 126

" training, 310

" " lack of, 295

" decline, cause of, 481

Egypt a hot-bed of vice, 286

Electricity, 407

Embryo, 63

" simple structure of, 64

" stages of growth of, 65

Emissions, effect of, 356

" internal, 361

" nocturnal, 353

Endurance of women, 43

Epilepsy, 344

" cause of, 244

Evil habits, 427

Excesses, marital, 216

" results of, 225

" effects of on wives, 231

" effects of on husbands, 226

Extra-uterine pregnancy, 97

Eyes, weakness of, 369

Fallopian tube, 74

False delicacy, 92

" training, 473

Fashion, 294

" and vice, 192

Fashionable dis