INDEX 
A 
Acheulian epoch, 43, 54, 65, 67, 
72, 187-189 
Age of Polished Stone see New 
Stone Age 
Agriculture, beginnings of, 243 
Egyptian, 297, 298 
New Stone Age, 246-249, 327 
Peruvian, 341 
Alcohol, use of, 178, 179 
Algae, fossil, 15 
Alligators, Old and New World, 
326 
Alpaca, fleece of, 341 
Alphabet, invention of, 291 
Alpha Centauri, nearest star, I, 8 
Amber, use of, 274, 275 
American Indians, 327, 328 
Ammonites, 16 
Amphibians, rise of, 15 
Angiosperms, rise of, 17 
Animals, domestication of, 238, 
2395 250-254, 297) 314, 341 
draught, 256 
pack, 255, 341 
related, in Old and New World, 
326 
sacred, 251, 252 
Antevs, E., on geologic time, 7° 
on Ice Age, 62 
Apes, brain of, 45 
Arch, corbeled, 33! 
Architecture, beginnings of, 264 
Bronze Age, 281 
Cretan, 310 
Egyptian, 298, 299 
Architecture, Mayan, 331, 332 
New Stone Age, 264, 265 
Peruvian, 343 
Toltec, 337 
Aztec, 339 
Armor, Bronze Age, 271, 272 
iron, 324 
Stone Age, 27! 
Art, Assyrian, 307 
Aurignacian, 77, 203-205 
beginnings of, 262 
Bronze Age, 281 
Capsian, 228-232 
cave, $1, $2, 203-205, 217-223 
Chinese, 322 
Cretan, 309, 310 
Cro-Magnon, 75, 203-205, 218- 
plphe 
eastern Spanish, 231 
Egyptian, 299 
Magdalenian, 74, 218-223 
Mayan, 330-335 
New Stone Age, 263 
Paleolithic, 75, 229 
Peruvian, 343 
Solutrean, 209 
Aryans, 307, 308, 314, 315 
Asia, prehistoric southwestern, 
301-308 
Asoka, 317 
Assyria, 306, 307 
Atahualpa, 347 
Atomic gradation, law of, 5 
Atoms, annihilation of, 4, 7 
Aurignac, grotto of, 43 
human remains at, 77 
[ 365 ] 
