Race improvement, failure of compulsory attempts at, 27 Race improvement, Grecian methods for, 10 _et seq._ Race improvement, Grecian methods not suited for modern times, 24 Race improvement, natural factors in, 1 Race improvement, State aid to, 37, 53 Race should be thought of before ourselves, 211 Reproductive function, difference in exercise of, by animals and man, 210 Responsibility in parentage, 49, 181 _Ribot, Th._, 57, 68, 83 _Romanes, G. J._, 28, 73, 85, 87 Ruin of countries by the burdens of war, 203 Sacredness of parentage, 93 _Saint-Hilaire, Geoffroy_, 68 Sampson, mother of, 172 Science of true living, hygiene as the, 160 Scottish Co-operative Wholesale Society's manufacturing mill, 156 _et seq._ Selection, artificial, by man, 9 Selection, individual, by Noyes, 38 Selection, natural, _see_ "Natural selection." Selection, sexual, _see_ "Sexual selection." Selective action of female animals, 28 _et seq._ Selective action of woman in marriage, 43 _et seq._ Self-control, importance of, 96 Self-consciousness, excessive, cured by hypnotic suggestion, 216 Self-development, 48 Sense of touch, modification of, through use, 114 Sex-instinct, 51 Sexual cells, 162 Sexual cells, acquired powers of, 110 Sexual excess injuriously affects both parents and offspring, 211 Sexual impulse, gratification of the, consistent with the development of the highest mental qualities, 212 Sexual selection, 27 _et seq._, 131 _et seq._ Sexual selection, action of, among primeval men, 179 Sexual selection applicable primarily to male characteristics, 30 Sexual selection by women, effect of, 44 _et seq._ Sexual selection, influence of, 31, 33 Sick child, transmission of health to, by thought transference, 224 Sire, previous, influence of, on subsequent progeny, 86 _et seq._ Sleep, ordinary, differs from hypnotic sleep only in degree, 223 _Smith, Sidney_, 121 Sobriety, importance of, in relation to offspring, 91 _See_ "Alcohol." Soldiers demand gratification of their passional natures, 202 Spartans, marriage relations among, 13 _et seq._ Special aptitudes of child determined by prenatal influences, 204 Spectre of heredity, 127 _et seq._ _Spencer, Herbert_, 4, 77, 78, 85, 87, 112, 115, 149, 169, 181 Spermatozoon, 162 Spiritual nature, appeal to, in hypnotic suggestion, 221 Spontaneous thought transference, 224 Standing armies, crushing burden of, 203 State, aid of the, to race improvement, 53 State, children regarded as belonging to the, 10 _et seq._, 22 Stirpiculture. _See_ "Race, improvement of the." Stirpiculture, meaning of, 10 Stirpiculture, good air and water as factors in, 175 Stirpiculture, Noyes' experiment in, 37 _et seq._ Stirpiculture, starting point of, 52 Strength as necessary as tenderness to bringing up of children, 213 Struggle, sexual selection through, 132