slands, 778, 782.

Subapennine strata, 74.
----, early Italian geologists on, 42, 71.

Submarine forests, 303, 323, 746.
----, peat, 724, 770.
----, rivers, 357.
----, volcanoes, 431, 454.
----, eruptions in mid Atlantic, 436.

Subsidence of land, 460, 465, 470, 477, 495, 503, 504, 507, 691, 761,
762.
----, great areas of, 170, 790.
----, greater than elevation, 563, 787.
----, simultaneous in Miocene epoch, 192.
----, of land, delta of Mississippi, 271.
----, of coral islands, slow and uniform, 791.

Subterranean movements, uniformity of, 186.
----, movements near New Madrid, 1811-12, 270.

Suffolk, cliffs undermined, 309.
----, tertiary strata of, 142.

Sulphuric acid, lake of, in Java, 353.

Sulphureous springs, 245.

Sumatra, volcanoes in, 354.
----, animals destroyed by river floods in, 751.

Sumbawa, subsidence in island of, 1815, 464, 762.
----, ashes, transported to great distances by eruptions of, 106.

Sun, variations in spots of, 129.

Sunda, Isles of, volcanic region of, 350.

Sunderbunds, part of delta of Ganges, 276.

"Sunk country," west of New Madrid in U. S., 467.

Superior, Lake, deltas of, 254.
----, recent deposits in, 254, 768.
----, its depth, extent, &c., 254.
----, bursting of, would cause a flood, 156.

Sussex, waste of its coast, 317.

Sutlej, R., fossils near, 6.

Swanage Bay, excavated by sea, 318.

Sweden, gradual rise of, 520, 563.
----, gradual subsidence of south of, 530.
----, earthquakes in, 531.
----, land rising, 192.
----, _See_ also Scandinavia.

Switzerland, towns destroyed by landslips in, 732.

Syria, earthquakes in, 355, 453.

T.

Tacitus cited, 364.

Tagliamento, R., delta of the, 258.

Targioni, on geology of Tuscany, 40.

Tartary, volcanoes in, 355.

Taxodium distichum in Great Dismal Swamp, 725.

Tay, estuary of, encroachment of sea in, 302.
----, submarine forests in, 303.

Taylor, Mr. R. C., on waste of cliff's, 306.
----, on gain of land on coast of Norfolk, 308.
----, on caves in isle of Cuba, 741.

Tchihatchoff, M., map of Italy, 123.

Teissier, M., on human bones in caves, &c., 739.

Temperature, great changes in, 92.
----, difference of, in places in same latitudes, 95.
----, warmer in tertiary periods, 75.
----, oscillation of, 125.
----, _See_ Climate.

Temples, buried, in Egypt, 726.