man, 147.
----, on hybrid races, 602.
----, on facial angle, 608.
----, on distribution of animals, 629, 631.

Procida, island of, ancient writers on, 360.

Progressive development, theory of, 130-153.
----, in animals, Lamarck's theory of, 567.

Provinces, geographical, of Testacea, 649.

Provinces, zoological and land quadrupeds, 631.

Pterodactyles, 137.

Pulo Nias, upraised coral in, 794.

Purbeck, its peninsula wasting, 319.

Pursh on plants of United States, 614.

Puzzuoli, Temple of Serapis near, 507.
----, inland cliffs near, 508, 510.
----, date of re-elevation of coast of, 515, 518.
----, encroachment of sea near, 515.
----, coast near, now subsiding, 516.

Pyrenees, their relative age, height, &c., 120, 166.

Pythagoras, system of, 10.
----, on Etna, 345.

Q.

Quadrumana, fossil, 144.

Quadrupeds, domestic, multiply in America, 584, 685.
----, regions of indigenous, 630, 636.
----, imbedding of terrestrial, 749.

Quaggas, migrations of, 638.

Quebec, climate of, 95.
----, earthquakes in, 470.

Queenstown, Canada, table land terminates at, 216.

Quintero elevated by earthquake of 1822, 457.

Quiriui, theory of, 25.

Quito, earthquakes and volcanoes in, 346, 348, 469.

R.

Rabenstein cave, 736.

Race of Alderney, its velocity, 293.

"Races," tidal currents so called, 341.

Raffles, Sir S., cited, 465, 599.

Rafts, drift-timber in Mississippi, &c., 267.

Rain, action of, 713.
----, diminished by felling of forests, 713.
----, fall of, in basin of Ganges, 278.
----, Huttonian theory of, 199.
----, fall of, varying with latitude, 199.
----, fall of, in Eastern Bengal, 200.

Rain-prints, recent, on mud in Nova Scotia, 202.

Raised beaches, 184.

Ramree, volcanic island, 354.

Raspe on islands shifting their position (note), 11.
----, his theory, 1763, 42, 43, 48.

Rats, migrations of, 637.
----, introduced by man into America, 663, 686.

Rawlinson, Col., on delta of Tigris, 285.

Ray, his physico-theology, &c., 30, 31.
----, cited, 645, 683.

Reaumur on insects, 674.

Reculver cliff; action of sea on, 312.

Rocupero on flowing of lava, 401.

Red Crag, fossils of, 142.

Redman, J. B., on changes of English coast, 315, 316, 319.

Red marl, supposed universality of, 158.

Red River, new lakes formed by, 269.
----, drift-wood i