INDEX 



Ababua, restriction of intercourse, 175 ; 

 abortion, 179 ; infanticide, 180 ; pro- 

 perty, 210. 



Abipones, lactation, 138 ; age at mar- 

 riage, 140 ; abstention from inter- 

 course, 140 ; infanticide, 149, 219 ; 

 feuds, 152 ; health, 159 ; treatment 

 of children, 160 ; age at marriage, 

 226. 



Abortion, among hunting and fishing 

 races, 145 ; among agricultural races, 

 168, 178, 189, 196 ; extent of, 215 ; 

 origin of, 216 ; as regulating num- 

 bers, 222 ; among historical races, 

 256, 268, 314. 



Acheulean period, 121. 



Acquired characters, not inherited, 74 ; 

 contrasted with inherited characters, 

 68. 



Adio, restriction of intercourse, 176. 



Africa, evolution of tradition in, 442. 



Aged, treatment of, among hunting and 

 fishing races, 154. 



Ahts, lactation, 138 ; war, 151 ; treat- 

 ment of aged, 155 ; food, 233 ; pro- 

 perty, 296. 



Ainu, lactation, 185 ; fertility, 189 ; 

 war, 194. 



Akamba, abortion, 179 ; property, 209 ; 

 marriage customs, 228. 



Akikuyu, fertility, 178 ; war, 181 ; pro- 

 perty, 210 ; age at marriage, 228 ; 

 health, 235. 



Aleuts, fertihty, 143 ; infanticide, 148. 



Amazon tribes, war, 171. 



America, evolution of tradition in, 439 ; 

 racial characteristics. 451. 



American Indians, fertility, 99. See 

 also under varioiis tribes. 



Andamanese, lactation, 138 ; fertility, 

 144 ; infant mortality, 160 ; intel- 

 lect, 390. 



Animal behaviour, evolution of, 45 ff. 



Annam, abortion, 256. 



Anthropoid apes, evolution of, 109 

 mode of life, 110. 



Apaches, contraceptive methods, 167 

 abortion, 168. 



Arabs, celibacy, 252 ; lactation, 254 

 restriction of intercourse, 254 ; con 

 traceptive methods, 255 ; abortion 

 256 ; infanticide, 259 ; over-popula 

 tion, 275 ; migration, 302. 



Aru Islands, fertility, 186; abortion, 

 189. 



Ashanti, restriction of intercourse, 175 ; 

 sacrifices, 180. 



Asia, evolution of tradition in, 441. 



Assiniens, fertility, 177. 



Atonga, restriction of intercourse, 176. 



Attakapas, age at marriage, 229. 



Aurignacian period, 122. 



Australians, fertility, 99 ; early inter- 

 course 135; lactation, 137; initia- 

 tion ceremonies, 138 ; age at mar- 

 riage, 139 ; abortion, 145 ; infanti- 

 cide, 147, 216 ; war, 149 ; feuds, 

 152; treatmentof sick, 154 ; disease, 

 157 ; health, 158, 231 ; property, 

 203 ; division of food, 211 ; marriage 

 customs, 224 ; storing of food, 232 ; 

 intellect, 389. 



Awa-Wanga, restriction of intercourse, 

 176. 



Aymaras, lactation, 165 ; fertility, 168. 



Azilian-Tardenoisian, 123. 



Aztecs, contraceptive methods, 167 ; 

 abortion, 168. 



Baganda, lactation, 174 ; restriction of 

 intercourse, 176 ; war, 181 ; witch- 

 craft, 182 ; health, 183 ; property, 

 210 ; marriage customs, 228 ; food, 

 233. 



Bahamas, 396. 



Bahima, war, 181. 



Baholoholo, fertility, 178. 



Bahuana, war, 171 ; early intercourse, 

 173; abortion. 179. 



Bakairi, abortion, 169. 



Bakalai, war, 181. 



Bakene, fertihty, 178. 



Bambala, war, 171 ; early intercourse, 

 173 ; fertihty, 178 ; intellect, 391. 



Bangala, early intercourse, 173 ; age at 

 marriage, 174 ; restriction of inter- 

 course, 175 ; fertility, 178 : abortion, 

 179 ; property, 209 ; marriage cus- 

 toms, 228; intellect, 391. 



Banks Island, early intercourse, 185; 

 infanticide, 191. 



Bantu Races, polygamy, 102 ; age at 

 marriage, 174 ; restriction of inter- 

 course, 176 ; health, 183 ; intellect, 

 390. 



Banyala, war, 181. 



