Madeira, birds of. -British plants compared with those of. -Canary Islands formerly connected with. -flora of. -insects of. -land-extension, of. -land-shells of. -Lowe on. -Tertiary plants of. -elevation of.

Maer, the home of the Wedgwoods.

Magellan Straits, H.M.S. "Beagle" in.

Magnus, review by Krause of his work on colour.

Magpies, pairing of.

Mahon, Lord, compliment to Darwin.

Mahonia, natural crossing of.

Maillet, evolutionary views of.

Maize, hybrids of, see also Zea.

Malaxeae, and Epidendreae.

Malaxis, course of vessels in flower. -fertilisation of.

Malaxis paludosa, epiphytic on Sphagnum.

Malay archipelago, Darwin on Wallace's book on. -translation by Meyer of Wallace's book.

Malay region, glacial epoch and the. -Wallace on butterflies and pigeons of.

Malpighiaceae, degraded flowers of. -Erythroxylon included in.

Malta, Forbes on geology of.

Malthus, Darwin derives help from reading. -Haughton sneers at. -misunderstood.

Malva.

Mammae, as rudimentary organs in man.

Mammals, alteration in skulls of. -Australian cave-. -birds compared with. -Dana's classification. -distribution. -as indices of climatic changes. -as proof of union between England and Continent since Glacial period. -Waterhouse's "Natural History" of. -Glacial period and extinction of. -Origin and migration.

Mammoth (Bog).

Mammoth, Darwin's eagerness to collect bones of. -Falconer on the.

Man, antiquity of (see "Antiquity of Man," and Lyell, Sir C.). -and apes. -brain of. -criticism of Lyell's chapter on. -Huxley's book on. -McClennan on primitive. -and Natural Selection. -origin of. -races of. -selection by Nature contrasted with selection by. -slow progress of. -Darwin on Wallace's paper on. -descent of. -ears of. -geological age of. -and geological classification. -hairyness of. -introduction of. -rank in classification. -Turner on evolution of. -Wallace on evolution of.

Mankind, descent from single pair. -early history of. -progress of.

Mantell, Owen's attack on.

"Manual of Scientific Inquiry," Darwin's.

Manx cats.

Maranta, sleep-movements of.

Marble, MacCulloch on metamorphism of.

Marianne Islands, subsidence of. -want of knowledge of flora.

Marion, "L'evolution du Regne vegetal," by Saporta and.

Marlatt, C.L., on Cicada.

Marquesas Islands, subsidence of.

Marr, J.E., on the rocks of Bohemia. -mentioned.

Marriage, Darwin on. -Galton's proposal to issue health-certificates for.

Marshall, W., on Elodea.

Marsupialia, compared with placentata. -Darwin on nature of. -evidence of antiquity. -abundance in Secondary period.

Martens, see Martins.

Martha (=Posoqueria), F. Muller's paper on.

Martin, H.N., Darwin's opinion of "Elementary Biology" by Huxley and.

Martins, experiments on immersion of seeds in sea by.

Maruta cotula of N. America.

Masdevallia, Darwin's work on.

Massart, on regeneration after injury.

Masters, M., letters to. -lecture at Royal Institution. -"Vegetable Teratology."

Mastodon, Australian. -extinction of. -Falconer on. -in Timor. -migration into S. America. -skeleton found by Darwin. -M. andium, Falconer on intermediate character of.

"Materialism of the Present day," Janet's.

Matteucci on electric fishes.

Matthew, P., on forest trees in Scotland. -quoted by Darwin as having enunciated principle of Natural Selection before "Origin."

Maurienne, note on earthquake in province of.

Mauritius, craters of. -elevation of. -extinction of snakes of. -oceanic character of.

Maury's map, as illustrating continental extension.

Maxillaria.

Maypu River, Darwin visits.

Mays, J.A., publishes lectures by Huxley.

Medals: -(Copley), Darwin, Lyell. -(Royal). -(Wollaston), Darwin.

Medical Department of Army, statistics from Director-General of.

Meditation, expression of eyes in.

Mediterranean Islands, flora of.

Medusae, Romanes' work on.

Meehan, T., letter to.

Megalonyx.

Megatherium, Darwin collects bones of. -Sir A.

Charles Darwin

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