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style=margin-left:2em; text-indent:-2em * Gravel, how far transported, 108
 * of Patagonia, 75, 171
 * Greenstone, fragments of, 257
 * Gryllus migratorius, 329
 * Guanaco, habits of, 166
 * , fossil allied genus, 172
 * Guantajaya, mines of, 363
 * Guardiadei Monte, 118
 * Guasco, 348
 * Guasos of Chile, 258
 * Guava, imported into Tahiti, 403
 * Guinea-fowl, 5, 493
 * Gunnera scabra, 278
 * Gypsum, great beds of, 319
 * in salt-lake, 66
 * in Patagonian tertiary-beds, 171
 * at Iquique with salt, 364
 * at Lima with shells, 369


 * Hachette, M., on lightning-tubes, 60
 * Hailstorm, 115
 * Hall, Capt. Basil, on terraces of Coquimbo, 343
 * Hare, Varying, 45
 * Head, Capt, on thistle-beds, 119, 124
 * Height of snow-line on Cordillera, 244
 * Henslow, Prof., on potatoes, 285
 * , on plants of Keeling Island, 454
 * Hermit crabs, 457
 * Hill, emitting a noise, 361
 * Himantopus, 114
 * Hogoleu barrier-reef, 469
 * Holes made by a bird, 95
 * Holman on drifted seeds, 454
 * Holuthuriæ feeding on coral, 465
 * Hooker, Sir J., on the Cardoon, 119
 * , Dr. J. D., on the Kelp, 239
 * , on Galapageian plants, 392, 395
 * Horn, Cape, 211
 * Horner, Mr., on a calcareous deposit, 10
 * Horse-fly, 170
 * Horses difficult to drive, 110
 * drop excrement on paths, 119
 * killed by great droughts, 134
 * , multiplication of, 233
 * broken in, 151
 * Horse, powers of swimming of, 143
 * wild at the Falkland Islands, 191
 * Horse, fossil, 82, 130
 * Horsemanship of the Gauchos, 153, 195
 * Hot springs of Cauquenes, 263
 * Huacas, 368, 370
 * Humboldt on burnished rocks, 12
 * on the atmosphere in
 * tropics, 32
 * on frozen soil, 88
 * on hybernation, 98
 * on potatoes, 285
 * on earthquakes and rain, 351
 * on miasma, 366, 435
 * Humming-birds of Rio de Janeiro, 32
 * of Chile, 271
 * Hybernation of animals, 98
 * Hydrochærus capybara, 49
 * Hydrophobia, 353
 * Hyla, 29
 * Hymenophallus, 32


 * Jackson, Col., on frozen snow, 325
 * Jaguar, habits of, 135
 * Jajuel, mines of, 259
 * James Island, Galapagos Archipelago, 376
 * Juan Fernandez, volcano of, 310
 * , flora of, 392


 * Ibis melanops, 165
 * Ice, prismatic structure of, 325
 * Icebergs, 187, 224, 246 to 251
 * Incas' bridge, 334, 356
 * Incrustations on coast rocks, 9, 12
 * Indian fossil remains, 370
 * Indians, attacks of, 64, 77, 129
 * , Patagoniaus, 231
 * , Araucarians, 299
 * of the Pampas, 100
 * of Valdivia, 299
 * , perforated stones used by, 267
 * , powers of tracking, 328
 * , grave of, 169, 187
 * , ruins of houses of, in Cordillera, 356, 368
 * , antiquities of, in La Plata, 46, 105
 * decrease in numbers, 104
 * Infection, 435
 * Infusoria in dust in the Atlantic, 5
 * in the sea, 15, 162
 * in Pampas, 82, 130
 * in Patagonia, 170