Luxan.

Luxuriant vegetation not necessary to support large animals.

Lycosa.

Lyell, Mr., on terraces of Coquimbo. on longevity of Mollusca. on change in vegetation. on fossil horses' teeth. on flocks of b.u.t.terflies. on extinct mammals and ice-period. on stones twisted by earthquakes. on frozen snow. on distribution of animals. on subsidence in the Pacific.

MacCulloch on infection.

Macquarie river.

Macrauchenia.

Macrocystis.

Madrina, or G.o.dmother of a troop of mules.

Magdalen channel.

Magellan, flora of. H.M.S. "Beagle" in Straits of. Straits of. Port Famine. kelp of.

Malays.

Malcolmson, Dr., on hail.

Maldiva atolls.

Maldonado.

Mammalia, fossil.

Man, antiquity of. body frozen. fossil remains of. fear of, an acquired instinct. extinction of races.

Mandetiba.

Mandioca or ca.s.sava.

Mare's flesh eaten by troops.

Mares killed for their hides.

Mastodon.

Mate pots and Bambillio.

Matter, granular, movements in.

Mauritius.

Maypu river.

Megalonyx.

Megatherium.

Mendoza. climate of.

Mercedes on the Rio Negro.

Mexico, elevation of.

Miasmata.

Mice inhabit sterile places. number of, in America. how transported. different on opposite sides of Andes. of the Galapagos. of Ascension.

Millepora.

Mills for grinding ores.

Mimosae.

Mimus.

Miners, condition of.

Mines. how discovered.

Miranda, Commandant.

Missionaries at New Zealand.

Mitch.e.l.l, Sir T., on valleys of Australia.

Mocking-bird.

Molina omits description of certain birds.

Molothrus, habits of.

Monkeys with prehensile tails.

Monte Video.

Moresby, Captain, on a great crab. on coral-reefs.

Mount Sarmiento. Tarn. Victoria.

Mountains, elevation of.

Movements in granular matter.

Mud, chalk-like. disturbed by earthquake.

Mules.

Muniz, Signor, on niata cattle.

Murray, Mr., on spiders.

Mylodon.

Myopotamus Coypus.

Narborough Island.

Negress with goitre.

Negro, Rio. lieutenant.

Nepean river.

New Caledonia, reef of.

New Zealand.

Niata cattle.

Noises from a hill.

Noses, ceremony of pressing.

Nothura.

Notopod, crustacean.

Nulliporae, incrustations like. protecting reefs.

Octopus, habits of.

Oily coating on sea.

Olfersia.

Opetiorhynchus.

Opuntia. Darwinii. Galapageia.

Orange-trees self-sown.

Ores, gold.

Ornithology of Galapagos.

Ornithorhynchus.

Osorno, volcano of.

Ostrich, habits of.

Ostrich's eggs.

Otaheite.

Otter.

Ova in sea.

Oven-bird.

Owen, Captain, on a drought in Africa. Professor, on the Capybara. fossil quadrupeds. nostrils of the Gallinazo.

Owl of Pampas. of Galapagos Islands.

Oxyurus.

Oysters, gigantic.

Paint, white.

Pallas on Siberia.

Palm-trees in La Plata. south limit of. in Chile.

Palms absent at Galapagos.

Pampas, halt at a pulperia on the. number of embedded remains in. southern limit of. changes in. giant thistle of. not quite level. geology of. view of, from the Andes.

Pan de Azucar.

Papilio feronia.

Parana, Rio. River. islands in.

Parish, sir W., on the great drought.

Park, Mungo, on eating salt.

Parrots.