254 



INDEX 



Giard, 83 

 Gingko, 35 

 Glow-worms, 52, 67 

 Green flies, 10, 41 

 Groos, 74 

 Grosz, 47, 87 

 Gunther, 74 



Hare, Francis, 115 

 Healthfulness, 185 

 Heape, 11, 71, 112, 137, 191 

 Herrick, 145 

 Hertwig, 103 

 Hesse, 77 



Heterozygons, 108 

 Heymans, 212 

 Homozygons, 108 

 Hormones, 80 

 Hornbill, 54 

 Hydra, 46, 102 

 Hysteria, 150 



Ideals of sex, 197 

 Illegitimacy, 194 

 Incontinence, 195 

 Individuation and fertility, 229 

 Infusorians, 26 

 Insemination, 39 

 Instinct, 130 

 Instincts, 161 

 Internal secretions, 80, 141 



Jennings, 30 



Kammerer, 47, 56, 78, 87 

 Katabolism, 79, 87 

 Key, Ellen, 234 

 Kindness, zOO 

 Kuschakewitsch, 103 



Lamarckian theory of sex, 75, 92 

 Lilies. 193 

 Loeb, 40 



Love, 54, 132, 181, 193, 195; 

 evolution of, 182 



Mackenzie, Leslie, 166 

 Man, 190 



and woman, 203 



Man's place in nature, 19, 55, 



183 



Marshall, 186 

 Marriage, 131, 137, 196 

 Maternal care, 133, 135 

 Maternity, 10, 228 

 Maturation, 39, 41 

 Matriarchate, 217 

 Maupas, 26 

 Mendelian view of sex, 105-111 



Mendelism, 105 

 Menopause, 140 

 Menstruation, 115 

 Meredith, 195 

 Mobius, 88 

 Modifications, 121 

 Monogamy, 136 

 Moral education, 14 

 Mosses, 104, 114 

 Mother age, 214 



Nature and nurture, 213 

 Nature study, 168 

 Nautilus, 68 

 Neuroses, 150 

 Newts, 51 



Obsessions, 150 

 Oliphant, 136 

 Oogenesis, 45 

 Ovary, 45, 80 

 Ovulation, 140 

 Ovum, 34 



Palolo, 68 



Paper nautilus, 89 



Parthenogenesis, 40, 99 



Pathology of sex, 142-157 



Patriarchal period, 219 



Pearson, 11, 207, 208, 214, 234 



Peckham, Prof, and Mrs., 126 



Peters, 128 



Pollen grains, 35, 169 



Potts, 84 



Promiscuity, 196 



Prostitution, 155, 189 



Puberty, 121 



Pycraft, 54, 124 



Quakers, 198 



Ranke, 204 

 Religion, 186, 221 

 Reptiles, 63 

 Reversion, 148 

 Rotifers, 42 

 Ruffs, 125 



Sacculina, 84 



Salmon, 60 



Salps, 32 



Schreiner, Olive, 224 



Schultze, 103, 111 



Scrotum, 91 



Seahorse, 65 



Secondary sex-characters, o9 



Self-control, 184 



Senescence, 139 



