sil, 753.

Manetho, 63.

Mantell, Dr., on bones from Saxon tumulus, 788.
----, on Lewes levels, 748, 768.

Map of Siberia, 79.
----, of World, showing present unequal distribution of land and sea,
110.
----, showing position of land and sea, which might produce extremes
of heat and cold, 111.
----, of Europe, showing extent of land covered by sea since
commencement of tertiary period (Pl. I.), 121.

Map of coast from Nieuport to mouth of Elbe, 326.
----, of volcanoes from Philippine Islands to Bengal, 351.
----, of volcanic district of Naples, 361.
----, of Gulf of Santorin, 442.
----, of Chili, 454, 455.
----, of Cutch, 460.
----, of Calabria, 472.
----, of Sweden, 522.

Maracaybo, Lake, 466.

Marine deposits, imbedding of land quadrupeds in, 749, 752.
----, of human remains and works of art in, 756.
----, of freshwater species in, 768.
----, plants and animals imbedded in, 770.

Marine vegetation. 617, 622.

Marl lakes of Scotland, animals and plants fossilized in, 752, 766.

Marsili, on arrangement of shells in Adriatic, 36, 38, 40.
----, on deposits of coasts of Languedoc, 260.

Marsupial animals, distribution of, 633.
----, fossil, 138.

Martigny destroyed by floods, 211.

Martius, on drifting of animals by the Amazon, 641.
----, on Brazil, 682.

Maryland, whirlwind in, 619.

Mattani on fossils of Volterra, 34.

Mattioli on organic remains, 21.

Mauritius, reef uplifted above level of sea, 794.

Mediterranean, microscopic testacea of, 44.
----, deposition of salt in the, 334.
----, new island in, 432.
----, its temperature, depth, level, &c., 45, 294, 334, 510.
----, same level as Red Sea, 294.

Megna, R., arm of Brahmapootra, 279.

Melville Island, fossils of, 90.
----, migrations of animals into, 640.

Melville, Dr., on dodo, 684.

Memphis, in delta of Nile, 261.

Mendip Hills, caves of, 737.

Menu's Institutes, 4, 5.

Mercati on organic remains, 22.

Mersey, vessel in bed of, 758.

Messina, tide in Straits of, 290.
----, earthquakes at, 477, 488, 490.

Metallic nucleus, theory of an unoxidated, 545.

Metallic substances changed by submersion, 759.

Metamorphic rocks, how formed, 177.
----, of the Alps, 178.
----, why those visible to us must be very ancient, 178.

Mexico, Gulf of, tides in, 295.
----, currents in, 96, 292