men's Land, 471.

of Australia, 459-474.

Abrolhos, 24.

Absence of trees in Pampas, 56.
Aconcagua, volcano of, 269, 309.
Actinia, stinging species, 489.

Africa, Southern part desert, yet
supports large animals, 97.

Agouti, habits of, 81.

Ague common in Peru, 386.
Albemarle Island, 398.
Allan, Dr., on Diodon, 24.

on Holuthuriæ, 490.

Alluvium, saliferous, in Peru, 384.
stratified, in Andes, 334.

Amblyrhynchus, 408, 418.
Anas, species of, 214.

Animalculæ, see Infusoria.
Antarctic islands, 264.
Antipodes, 440.

Ants at Keeling Island, 481.

in Brazil, 45.

Apires, or miners, 361.

Aplysia, 16.

Apple-trees, 316.

Aptenodytes demersa, 214.

Areas of alternate movements in the

Pacific and Indian oceans, 506.
Armadilloes, habits of, 108.

169.

fossil animal allied to, 142,

Arrow-heads, ancient, 377.

Ascension, 517.

Aspalax, blindness of, 62.

Athene, 81, 138.

Atolls, 491.

Attagis, 106.

Atwater, Mr., on the prairies, 131.

Audubon, M., on smelling-power of

carrion hawks, 198.

Australia, 457.
Australian barrier, 498.
Azara on spiders, 46.

131.

on rain in La Plata, 57.

on range of carrion-hawks, 69.
on habits of carrion-hawks, 67.
on a thunder-storm, 72.

on ostrich-eggs, 103.

on bows and arrows, 117.

on new plants springing up,

on great droughts, 145.
on hydrophobia, 374.

Bachman, Mr., on carrion-hawks,

199.

Bahia Blanca, 85-117.

Bahia, Brazil, 22.

scenery of, 520.

Balbi on coral reefs, 495.
Bald Head, Australia, 474.
Ballenar, Chile, 369.

Banda Oriental, 155.

Banks's Hill, 225.

Barking-bird, 306.

Basaltic platform of Santa Cruz,

Chonos, Archipelago, 298.

climate of, 260.

ornithology of, 305.

Chupat, Rio, 119.
Cladonia, 384.

Clearness of atmosphere within An-
des, in Chile, 273.

Climate of Tierra del Fuego and
Falkland Islands, 259.

Antarctic Islands, 264.
Galapagos, 394, 399.

change of, in Chile, 378.

Clouds of vapour after rain, 34.
on Corcovado, 39.
hanging low, 388.

hanging low at sea, 425.
Coleoptera in Tropics, 44.
out at sea, 173.
of St. Julian, 184.
Colias edusa, flocks of, 172.
Colnett, Capt., on spawn in sea, 27.
on a marine lizard, 408.

on transport of seeds, 415.
Colonia del Sacramiento, 157.
Colorado, Rio, 82.

Compound animals, 216.

Concepcion, Chile, 321.

Condor, habits of, 196, 200, 287.

Confervæ, pelagic, 25.

Conglomerate on the Ventana, 121.

in Cordillera, 338, 339.

Conurus, 151.

Convicts of Mauritius, 510.

condition of, in New South
Wales, 469.

Cook, Capt., on Kelp, 255.
Copiapó, river and valley of, 371.
town of, 375.

Coquimbo, 364.

Coral formations, 425, 477-509.
stinging species of, 489.

Coral, dead, 486, 505.
Corallines, 216.

Corcovado, clouds

volcano, 309.

on, 39.

Cordillera, appearance of, 274, 293,
338.

different productions on east

and west side, 346.

-, passage of, 334.

structure of valleys, 335.
geology of, 339, 351.
rivers of, 336.

of Copiapó, 382.

Cormorant catching fish, 213.

Corral, where animals are slaugh-
tered at Buenos Ayres, 134.
Coseguina, eruption of, 309.
Countries, unhealthy, 386.

Couthouy, Mr., on coral-reefs, 500.
Crabs, hermit species of, 482.

at Keeling Island, 488.
at St. Paul's, 20.

Craters, number of, at the Gala-
pagos Archipelago, 394.

of elevation, 511.

Crisia, 216.

Cruelty to animals, 168.
Crustacea, pelagic, 175.

Ctenomys Brasiliensis, 61.

fossil species of, 94.

Cucao, Chiloe, 312.

Cuckoo-like habits of Molothrus, 63.
Cuentas, Sierra de, 162.

Cumbre of Cordillera, 355.

Cuming, Mr., on shells, 414, 516.

Cuttle-fish, habits of, 17.

Cuvier on Diodon, 24.

Cynara, 131.

Cyttaria Darwinii, 252.

142.

176.

on infusoria in Pampas, 94,

on infusoria in the open sea,

on infusoria in Patagonia, 185.
on infusoria in Fuegian paint,
237.

on infusoria in coral mud, 490.
on infusoria in tuff at Ascen-
sion, 521.

177.

on phosphorescence of the sea,

on noises from a hill, 382.
Eimeo, view of, 429.

Elater, springing powers of, 41..
Electricity of atmosphere within

Andes, 345.

Elephant, weight of, 99.

Elevated shells, 96, 143, 184, 270,
316, 329, 364, 391.

Elevation of coasts of Chile, 271,
316, 326, 328, 358, 365, 378.
of B. Blanca, 91.

of Patagonia, 186, 392.

of Pampas, 142. ̧

of mountain-chains, 328.

of Cordillera, 335, 339, 351.

of fringing-reefs, 503.

Elevation of the coast of Peru, 391.
within human period, 392.

Entomology of the Galapagos Archi-
pelago, 404, 414, 416.
of Brazil, 43.

of Patagonia, 184, 346.
of Tierra del Fuego, 254.

of Keeling Island, 481.
of St. Helena, 516.

Entre Rios, geology of, 141.
Epeira, habits of, 46.

Erratic blocks, how transported, 264.
absent in intertropical coun-
tries, 264.

on plains of Santa Cruz, 201.
of Tierra del Fuego, 264.
Estancia, value of, 158.
Extermination of species and races,
187, 458, 472.

Extinction of shells at St. Helena,
514.

of species, causes of, 187, 188.
of man in New South Wales,
458, 472.

Eyes of tucutuco and mole, 63.

Falconer, Dr., on the Sivatherium,

Hyla, 39.

Hymenophallus, 43.

Ibis melanops, 179.

Ice prismatic structure of, 344.
Icebergs, 201, 240, 263-268.
Incas Bridge, 355, 377.

Incrustations on coast rocks, 19, 22.
Indian fossil remains, 392.
Indians, attacks of, 75, 87.
Patagonians, 248.
Araucarians, 317.
of the Pampas, 114.
of Valdivia, 317.

-, perforated stones used by, 284.
powers of tracking, 347.

grave of, 183, 201.

ruins of houses of, in Cordil-
lera, 377, 389.

-, antiquities of, in La Plata, 56,

117.

decrease in numbers, 116.
Infection, 459.

Infusoria in dust of the Atlantic, 15.
in the sea, 26, 176.
in Pampas, 94, 142.
in Patagonia, 185.
in white paint, 236.

in coral mud, 490.

at Ascension, 521.

Insects, first colonists of St. Paul's
rocks, 20.

blown out to sea, 173.

of Patagonia, 184, 346.

of Tierra del Fuego, 254.
of Galapagos, 403, 415, 416.
of Keeling Island, 481.
of St. Helena, 516.
Instincts of birds, 107, 422.
Iodine with salt at Iquique, 385.
Iquique, 383.

Iron, oxide of, on rocks, 23.
Islands, oceanic, volcanic, 19.
Antarctic, 264.
floating, 282.

-, low, 425, 492.

Jackson, Col., on frozen snow, 344.
Jaguar, habits of, 147.
Jajuel, mines of, 276.

James Island, Galapagos Archipel-
ago, 398.

Juan Fernandez, volcano of, 329.
flora of, 416.

Kater's Peak, 227.
Kauri pine, 451.
Keeling Island, 477.
birds of, 480.
entomology of, 488.
-, flora of, 479.