on

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
Guardia del 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

Horse, fossil, 82, 130
Horsemanship of the Gauchos, 153,

195
Hot springs of Cauquenes, 263
Huacas, 368, 370
Humboldt on burnished rocks, 12

the atmosphere in
tropics, 32

on frozen soií, 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 Archipe-

lago, 376
Juan Fernandez, volcano of, 310

flora of, 392

Hachette, M., on lightning-tubes, 60
Hailstorm, 115
Hall, Capt. Basil, on terraces of Co-

quimbo, 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
Hógoleu 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

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

Patagonians, 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 Cor-
dillera, 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

Infusoria in white paint, 221

in coral mud, 465

at Ascension, 494
Insects, first colonists of St. Paul's
rocks, 10

blown out to sea, 159
of Patagonia, 170, 327
of Tierra del Fuego, 238
of Galapagos, 381, 392, 394
of Keeling Island, 456

of St. Helena, 490
Instincts of birds, 95, 398
Iodine with salt at Iquique, 365
Iquique, 362
Iron, oxide of, on rocks, 12
Islands, oceanic, volcanic, 8

floating, 265
Antarctic, 248
low, 402, 467

Kater's peak, 212
Kauri pine, 427
Keeling Island, 452

subsidence of, 475
birds of, 456
entomology of, 456

flora of, 454
Kelp, or sea-weed, 239
Kendall, Lieut., on a frozen body,

249
Kingfishers, 2, 138
King George's Sound, 449

Lichtenstein on ostriches, 92
Lightning storms, 62

tubes, 59
Lima, 365, 368

elevation of a river near, 358
Lime, changed by lava into crystal-

line rock, 6
Limnæa in brackish water, 21.
Lion-ant, 442
Lizard, 97

marine species of, 385
Lizards, transport of, 382
Llama or Guanaco, habits of, 166
Locusts, 329
Longevity of species in Mollusca, 83
Lorenzo, San, island of, 369
Low archipelago, 402
Lund, M., on antiquity of man, 358
Lund and Clausen on fossils of Bra-

zil, 131, 173
Luxan, 329
Luxuriant vegetation not necessary

to support large animals, 85
Lycosa, 35
Lyell, Mr., on terraces of Coquimbo,
343

on longevity of Mollusca,
83

on subsidence in the Paci-
fic, 468

, on change in vegetation,
120

on fossil horses' teeth, 130

, on distribution of animals,
327

, on frozen snow, 325

, on extinct mammals and
ice-period, 172

on flocks of butterflies,
158

on stones twisted by earth-
quakes, 308

Labourers, condition of, in Chile,

267
Lagoon-islands, 402, 453, 465
Lagostomus, 124
Lake, brackish, near Rio, 21

with floating islands, 265

formed during earthquake, 371
Lamarck on acquired blindness, 52
Lampyris, 30
Lancaster, Capt., on a sea-tree, 100
Land-shells, 347, 488, 490
Lazo, 44, 153, 189
Leaves, fall of, 235

fossil, 448
Leeks in New Zealand, imported,

428
Lepus Magellanicus, 193
Lesson, M., on the scissor-beak, 138

on rabbit of the Falk-
lands, 193
Lichen on loose sand, 364

MacCulloch on infection, 435
Macquarie river, 442
Macrauchenia, 82, 173
Macrocystis, 239
Madrina, or godmother of a troop of -

mules, 315
Magdalen channel, 241
Magellan, Strait of, 231
Malcolmson, Dr., on hail, 116
Maldiva atolls, 467, 476, 478
Maldonado, 39

Muniz, Sig., on niata cattle, 145
Murray, Mr., on spiders, 161
Mylodon, 81, 131, 155
Myopotamus Coipus, 287

Negress with goître, 314
Negro, Rio, 63, 149

lieutenant, 76
New Caledonia, reef of, 469, 47?,
477

Zealand, 417
Niata cattle, 145
Noises from a hill, 36 i
Noses, ceremony of pressing, 423
Nothura, 45
Notopod, crustacean, 151
Nulliporæ, incrustations like, 9

protecting reefs, 498

Mammalia, fossil, 81, 127, 130, 155,

173, 371
Man, antiquity of, 358

fossil remains of, 370
body frozen, 249

fear of, an acquired instinct,
400

extinction of races, 435, 448
Mares killed for their hides, 154
Mare's flesh eaten by troops, 101
Mastodon, 127, 130
Matter, granular, movements in, 100
Mauritius, 483
Maypu river, 316
Megalonyx, 81, 131
Megatherium, 81, 83, 131
Mendoza, climate of, 323

330
Mexico, elevation of, 132
Miasmata, 365, 435
Mice inhabit sterile places, 360

number of, in America, 49
how transported, 288, 378

different on opposite sides of
Andes, 326

of the Galapagos, 378

of Ascension, 492
Millepora, 464
Mills for grinding ores, 266
Mimosæ, 25
Mimus, 54, 394, 399
Miners, condition of, 260, 265, 339,

346
Mines, 260, 310, 346

how discovered, 317
Missionaries at New Zealand, 425
Mitchell, Sir T., on valleys of Aus-

tralia, 438
Mocking-bird, 54, 394, 399
Molina, omits description of certain

birds, 271
Molothrus, habits of, 52
Monkeys with prehensile tails, 28
Monte Video, 40, 142
Moresby, Capt., on a great crab,
463

on coral-reefs, 479
Mount Sarmiento, 233, 241

Tarn, 234
Mountains, elevation of, 312
Movements in granular matter, 100
Mud, chalk-like, 465

disturbed by earthquake, 306
Mules, 315

Octopus, habits of, 7
Oily coating on sea, 17
Olfersia, 10
Opetiorhynchus, 289
Opuntia Galapageia, 374

Darwinii, 165

261
Orange-trees self-sown, 120
Ores, gold, 266
Ornithorhynchus, 441
Ornithology of Galapagos, 378, 394
Osorno, volcano of, 273, 275, 291
Ostrich, habits of, 43, 89
Ostrich's eggs, 113
Otaheite, 403
Otter, 287
Ova in sea, 17
Oven-bird, 95
Owen, Capt., on a drought in Africa,

133
-, Professor, on the Capybara, 50

fossil quadrupeds,
81 to 84, 130, 155

nostriis of the
Gallinazo, 185
Owl of Pampas, 70, 125
Oxyurus, 237, 289
Oysters, gigantic, 170

Paint, white, 221
Pallas on Siberia, 67
Palm-trees in La Plata, 46

in Chile, 256

south limit of, 244
Palms absent at Galapagos, 375