117, 139, 260

_Joan of Arc_, 351

_Joerger_, 331

Jus primae noctis, 151

_Keller_, 356

Kinship, 107

_Krafft-Ebing_, 142, 208, 234, 404

_Lamarck_, 39

Landerziehungsheime, 477

Lesbian love, 275

_Liguori_, 341

Lorettes, 322

Love, 111

Love and sexual appetite, 104
maternal, 135
and religion, 143

_Lubbock_, 181

Lycurgus, laws of, 466

_Marchal_, 18

Mariage de convenance, 91

Marriage by purchase, 170
by rape, 170
consanguineous, 164, 387
duration of, 182
for money, 295
forms of, 173
hygiene of, 427
ideal, 517

Masochism, 237

Masturbation, 80, 220, 228

Maternal love, 135

Maternity, 62

Matriarchism, 378, 522

_Maupassant, Guy de_, 133, 140, 301, 308

Medical advice, 421, 434
secrecy, 435

Medicine and sexual life, 418

Medico-legal case, 413

_Mendel_, 30

Menstruation, 56

Mental Capacity, 67

_Mercier_, 67

_Merrifield_, 36

_Messalina_, 353

_Meynert_, 67

_Mill, Stuart_, 69

Mistresses, 323

Mitosis, 7

Mneme, 14

Modesty, 126, 141

_Moebius_, 65

Money, cult of, 502

"Monkey's love," 136

Monogamy, 173

Morality, 445

Mormons, 174

_Moses_, 454

_Murillo_, 355

Mysogynists' ball, 249

_Napoleon_, 352

Narcotics and sexual life, 503

Natural selection, 42

Neo-malthusianism, 463

_Nero_, 353

Nocturnal emissions, 79

Nudity, 157

Nymphomania, 97, 268

Old maids, 129

Onanism, 228

Ontogeny, 40
of sexual life, 200

Orgasm, veneral, 57

Ovulation, 19

Palaeontology, 39

Pangenesis, 34

Paradoxy, sexual, 221

Parthenogenesis, 9

Passiveness in woman, 130

Paternity, inquiry into, 383

Pathology of sexual organs, 209

Patriarchism, 159

Patriotism, 108

_Paul, St_, 352

Pedagogy and the sexual question, 470

Pederasty, 244

Pederosis, 254

Penal law in sexual matters, 396

Penis, 53

Phallus, 150

Phylogeny, 40
of love, 108
sexual life, 193

Pimps, 88

Pithecanthropus, 46

Placenta, 21

Police and prostitution, 308

Polities and sexual question, 461, 467, 506

Polyandry, 173

Polygamy, 173

Pornography, 85, 121, 140, 406, 506

Pregnancy, 23, 58, 433

Prejudice and tradition, 505

Preventive membranes, 425

Procreative instinct, 92, 116

Promiscuity, 148, 173

Prostate, 53

Prostitutes, fate of, 314
number of, 308
psychology of, 97, 308
training of, 306
varieties of, 312

Prostitution, 88, 97, 185,