Richardson, Dr., on geographical distribution, 131 Rimsky atoll, 466 Rivers, power of, in wearing chan- River-bed, arched, 358 River-courses dry in America, 107 Rodents, number of in America, 49, fossil species of, 82 of Indian buildings in Cordil INDEX. Scorpions, cannibals, 165 on rocks, 318 phosphorescence of, 162 Seeds transported by sea, 392, 454 Shelley, lines on Mont Blanc, 168 Shells, fossil, of Cordillera, 321 elevated, 83, 130, 171, 254, 344, 369 , tropical forms of, far south, decomposition of, with salt, 369 Shingle-bed of Patagonia, 75, 171 America, 132 517 Transport of stones in roots of trees; of fragments of rock on Tree-ferns, southern limits of, 244 Trees, absence of, in Pampas, 46 time required to rot, 301 Trigonocephalus, 96 Tristan d'Acunha, 399, 456 Tropical scenery, 495 Tschudi, M., on subsidence, 369 59 fossil species of, 82 Tuff, craters of, 373 Infusoria in, 494 Turkey buzzard, 58, 184, 284 Types of organization in different Ulloa on hydrophobia, 353 on Indian buildings, 357 not crossed by the Bizcacha, 124 Vacas, Rio, 333 Valdivia, 297 forests of, 298, 301 Valley of St. Cruz, how excavated, 181 dry, at Copiapó, 355 Valleys, excavation of, in Chile, 315, 355 of Tahiti, 408, 412 in Cordillera, 315 |