INDEX 



51; 



abortion, 189 ; infanticide, 190 ; | 

 war, 192 ; infant mortality, 195. \ 



Samoyeds, fertility, 196 ; infanticide, 



196 ; health, 196. ; 



Sandwich Islands, infanticide, 101, j 



219 ; fertility, 187 ; war, 192 ; i 



health, 235. [ 



Sarawak, lactation, 185 ; fertility, 188 ; ! 



property, 211. 

 Savage Island, restriction of intercourse, 

 186 ; abortion, 189 ; infanticide, 190. 

 Selection, see Natural Selection. 

 Seri Indians, war, 152 ; treatment of 

 aged, 155 ; division of food. 212 ; 

 marriage customs, 225 ; elimination 

 among, 375. 

 Sexual cycle in Mammals, 44 ; former 

 condition in man, 92 ; effect of cap- 

 tivity upon, 94 ; peculiarity of, in 

 man, 98. 

 Sexual instinct, 42, 43, 51 ; among 



primitive races, 97. 

 Sexual intercourse, before maturity, 

 influence upon fecundity, 103 ; among 

 hunting and fisliing races, 135 ; taboo 

 upon, among hunting and fishing 

 races, 141 ; among agricultural races, 

 164, 172, 184 ; taboo upon, among 

 agricultural races, 165, 175, 186 ; 

 before maturity among historical 

 races, 253, 263 ; taboo upon, among 

 historical races, 267 ; restrictions 

 upon, 315. 

 Shawnees, contraceptive methods, 167 ; 



health, 172. 

 Shekiani, feuds, 181. 

 Shoshones, war, 170. 

 Shushwap, lactation, 138 ; age at mar- 

 riage, 144 ; war, 151 ; health, 159. 

 Siam, marriage, 253 ; lactation, 254. 

 Sierra Leone, property, 209. 

 Sioux, lactation, 165 ; fertility, 167 ; 

 abortion, 168. 221 ; infanticide, 169 ; 

 war, 170 ; infant mortality, 172. 

 Sitkins Indians, property, 207. 

 Social organization, origin of, 132 ; 

 mental evolution and, 401 ; organic, 

 401 ; segmentary, 429. 

 SociaHsts, attitude to Malthus, 31. 

 Society Islands, age at marriage, 185. 

 Solomon Islands, lactation, 185 ; re- 

 striction of intercourse, 186 ; abor- 

 tion, 189; infanticide, 191 ; war, 193. 

 Sound Indians, fertility, 144. 

 South Africa, lactation, 174 ; abortion, 

 179 ; infanticide, 180 ; witchcraft, 

 182 ; infant mortality, 184 ; pro- 

 perty, 210 ; marriage customs, 227 ; 

 intellect, 392. 

 Spermatozoa, 40, 41. 

 Starvation, no evidence for, among 

 primitive races, 231 ; among animals, 

 58, 61 ; among plants, 59. 



Stature, increase of, 340. 



Sterility, in males, 89 ; among Austra- 

 lians, 99 ; fat and, 104. 



Suggestion, inheritance of, 364 ; tradi- 

 tion and, 413. 



Sumatra, fertilitv, 188 ; marriage cus- 

 toms, 227. 



Swaheli, early intercourse, 173 ; restric- 

 tion of intercourse, 176 ; fertility, 

 178. 



Sympathy, inheritance of, 364 ; tradi- 

 tion and, 413. 



Tahiti, infanticide, 190 ; war, 192. 

 Tasmanians, early intercourse, 135 ; 

 lactation, 137 ; fertility, 141 ; abor- 

 tion, 145 ; infanticide, 146 ; war, 

 149 ; treatment of sick, 154 ; health, 

 158 ; infant mortality, 159 ; pro- 

 perty, 203. 



Tehuelches, age at marriage, 140. 



Temperament, disease and, 347 ; en- 

 vironment and, 353, 438 ; inheritance 

 of, 361. 



Tendas, lactation, 171 ; abortion, 178. 



Tepecanos, infanticide, 169. 



Texas tribes, fertility, 167. 



Thirty Years' War, 247. 



Thlinkeet, lactation, 138 ; war, 151 ; 

 health, 159 ; infant mortality, 160 ; 

 property, 207. 



Thompson tribes, age at marriage, 140, 

 226 ; abortion, 146 ; infanticide, 

 149 ; war, 151 ; infant mortality, 

 160. 



Thonga, restriction of intercourse, 177 ; 

 property, 210 ; age at marriage, 227. 



Tibet, celibacy, 251. 



Tikopia, infanticide, 190, 219. 



Timor Laut, health, 235. 



Tinneh, early intercourse, 136 ; lacta- 

 tion, 138; age at marriage, 140; 

 fertility, 143 ; war, 150 ; infant 

 mortality, 150 ; propertjs 206. 



Todas, infanticide, 222 ; early inter- 

 course, 254. 



Tonga, restriction of intercourse, 186 ; 

 infanticide, 190. 



Topebatos, age at marriage, 224. 



Torres Straits, age at marriage, 185, 

 227 ; restriction of intercourse, 186 ; 

 fertility, 187 ; abortion, 189 ; in- 

 fanticide, 190, 220 ; war, 192 ; food, 

 234. 



Trent, Council of, celibacy and, 264. 



Tunguses, lactation, 196; property, 21 1. 



Turcomans, war, 248. 



Turkey, lactation, 254 ; restriction of 

 intercourse, 255 ; abortion, 256. 



Uaupes, feuds, 171. 



Uganda, lactation, 174 ; restriction of 

 intercourse, 176 ; wai', 181. 



