Index 



643 



PUNTA 



Punta Alta, beds of, 323 

 Puy de Dome, trachyte of, 50 



rjUAIL Island, St. Jago, 5, 11. 



Quartz-rock, mottled from meta- 

 morphic action with earthy 

 matter, 8 



— crystals of, in beds alternating 

 with obsidian, 63 



— fusibility of, 138 



— - crystallised in sandstone, 148 



— of the S. Ventana, 434 



— C. Blanco, 436 



— Falkland Islands, 440 



— Portillo range, 494 



— viscidity of, 529 



— grains of, in mica-slate, 450 



— grains of, in dikes, 454, 458 



— veins of, near Monte Video, 433 



— veins of, in dike of greenstone, 

 443 



— veins of, relations to cleavage, 

 463 



Quillota, Campana of, 471 

 Quintero, elevation of, 246 

 Quiriquina, elevation of, 237 



— deposits of, 398 



EANCAGUA, plain of, 285 

 Rapel, R., elevation near, 239 

 Red Hill, 12, 13 



Reeks, Mr. T., his analysis of de- 

 composed shells, 274 



— his analysis of salts, 302 

 Remains, human, 268 

 Resin-like altered scorias, 10 

 Rio de Janeiro, gneiss of, 149 



— elevation near, 193 



— crystalline rocks of, 425 

 Rivers, small power of transport- 

 ing pebbles, 224 



■ — small power of, in forming val- 

 leys, 300 

 ■ — drainage of, in the Cordillera, 



483, 593 

 Roads, parallel, of Glen Roy, 260 

 Robert, M., on strata of Iceland, 108 

 Rocks, volcanic, of B. Oriental, 341 



— Tres Montes, 389 



SALSES 



Rocks, Chiloe, 391 



— T. del Fuego, 444 



— with laminar structure, 4C8 

 Rodents, fossil, remains of, 322, 



371 

 Rogers, Prof., on curved lines of 

 elevation, 142 



— address to Assoc, of American 

 Geologists, 420 



Rose, Prof. G., on sulphate of iron 

 at Copiapo, 553 



SBLAS, elevation of, 196 

 1 S. Cruz, elevation and plains 

 of, 201 



— valley of, 202 



— nature of gravel in valley of, 221 



— boulder formation of, 348 



— tertiary formation of, 377 

 — subsidence at, 419 



S. Fe Bajada, formations of, 334 

 S. George's Bay, plains of, 198 

 S. Helena, 83 



— crater of elevation of, 105 



S. Helena Island, sea-cliffs, and 



subsidence of, 229 

 S. Jago, Chile, 283 



— crater of, elevation of, 105 



— effects of calcareous matter on 

 lava, 13 



S. Josef, elevation of, 196 



— tertiary formation of, 372 

 S. Juan, elevation near, 190 



S. Julian, elevation and plains of, 

 200 



— salt lake of, 308 



— earthy deposits with mammi- 

 ferous remains, 345 



— tertiary formation of, 375 



— subsidence at, 418 



S. Lorenzo, elevation of, 266 



— old salt formation of, 579 



S. Mary, island of, elevation of, 237 

 S. Paul's Rocks, 36, 141 

 S. Pedro, elevation of, 191 

 Salado, R., elevated shells of, 192 



— Pampean formation of, 317 

 Salines, 308 



Salses, compared with tuff craters, 

 127 



