INDEX 



Indian languages, found to be of 

 Indo-European group, 79 ; the 

 first grand division of Aryan 

 speech, 83. 



Indian Ocean, in Tertiary Period 

 flowed between Europe and Asia 

 into the Arctic Ocean, 25, 63 ; 

 effect of its waters on the climate 

 of Greenland in Miocene age, 64. 



Indians, North American, formerly 

 thought to be Mongols or ten 

 tribes of Israel, 133 ; indigenous 

 to the continent, 133. 



Indians, South American, language 

 of, 156. 



Individual, the, his rights ignored in 

 primitive society, 217 ; recogni- 

 tion of, under the Roman Empire, 

 233 ; responsibility of, 233, 235, 

 241, 262 $ recognition of, by 

 Christianity, 235 ; and religious 

 belief, 266. 



Indo-European group of languages, 

 established by study of Sanskrit, 

 78 ; idea conceived by Sir William 

 Jones in 1790, 79 ; maintained 

 by Schlegel in 1808, 79 ; main- 

 tained by Bopp in 1833, 80; the 

 name established, 80 ; designated 

 as Aryan language, 80, 81 ; an 

 exclusive and interrelated group, 

 98. Set Aryan and Old Aryan. 



Indo-Germanic, Schlegel's name for 

 Indo-European group, 79. 



Indo-Persians, 80. 



Indus, the, 70, 71. 



Industrial arts, rudimentary begin- 

 nings of, 185 ; social conditions 

 and, 185 ; political stability of 

 society and, 1 86 ; extent of com- 

 merce and, 187 ; physical science 

 and, 187 ; humane feelings fa- 

 voured by, 207. 



Infallibility, assumption of, 213, 

 215. 



Infancy, prolongation of, an impor- 

 tant factor in man's development, 

 280, 287, 289 ; development of 

 the nervous system and, 285, 



287 ; in the lower animals, 285 j 

 in the orang-outang, 285 ; origin 

 of family life due to, 288 ; man's 

 descent from the highest of ani- 

 mals due to, 289. 



Infanticide in primitive tribal society, 

 228. 



Infidelity, the word becoming obso* 

 lete, 266. 



Ingersoll, Robert, and corporate re- 

 sponsibility, 219. 



Inquisition, the origin of, in the 

 thirteenth century, 240. 



Insectivora, Eocene, 19. 



Insects, earliest, 5, 7. 



Insurance, fire, in illustration of 

 man's tendency to provide for 

 the future, 198. 



Intellect, dawn of, in the Cave-men, 

 66 ; man's acquisition of, 67. 



Intellectual progress inseparable from 

 moral progress, 197. 



Intelligence and moral disposition in- 

 separable, 197, 200. 



Inventors, the great, belong to mod- 

 ern times, 184, 185 ; environ- 

 ment and early, 185; social con- 

 ditions and, 186-188. 



lonians, 45. 



Iranic languages, the second grand 

 division of Aryan speech, 83. 



Ireland, Arya not the root of the 

 word, 80 ; derivation of the name, 

 8 r ; Gaelic language in, 85. 



Iroquois tribe an example of prim- 

 itive society, 203. 



Isabella of Castile and persecution, 

 194. 



Isle of Man, Gaelic language still 

 spoken in, 85. 



Italian, a Latin language, 85, 137 ; 

 kinship with the French, perfectly 

 evident, 148. 



Italians, separation between Greeks 

 and, comparatively recent, 85 j 

 time of their invasion of Europe, 

 855 little known of their prehis- 

 toric career, 85 ; related to the 

 French and Spanish through Kel- 



353 



