s of the, 142.

Parish, Sir W., on inroads of sea during earthquakes, 499, 502.
----, on drifting of animals on floating rafts, 641.
----, on great droughts in S. America, 696.
----, on floods of Parana R., 751.

Parma, tertiary strata near, 74.

Paroxysmal energy of ancient causes controverted, 174.

Parrot, on Caspian Sea, 157.

Parrots near Cape Horn, 97.

Parry, Captain, highest northern latitude reached by, 98.
----, on migration of polar bear, 640.
----, on animals of Melville Island, 640.

Patagonia, tides on coast of, 291.

Paviland cave, 737.

Peat in delta of Ganges, 280.
----, on preservation of fossils in, 711, 718, 722.
----, distribution of, 719.
----, bogs, bursting of, 724.
----, submarine, 725.

Peat of Great Dismal Swamp, Virginia, 724.

Pembrokeshire, loss of land in, 324.

Penco destroyed by earthquake, 499.
----, elevation near, 500.

Pennant on waste of Yorkshire coast, 304.
----, on migration of animals, 77, 631, 637.

Pentagonal network of mountain chains, M. E. de Beaumont on, 170.

Penzance, loss of land near, 323.

Permian rocks, reptiles in, 136.

Paron on distribution of species, 647.

Perrey, M. Alexis, on frequency of earthquakes in winter, 561.

Persian Gulf, coral in, 776.

Peru, volcanoes in, 347.
----, earthquakes in, 347, 501.

Peruvian tradition of a great flood, 8, 502.

Peterhead, whale stranded near, 771.

_Phascolotherium Bucklandi_, 139.

Philippi, Dr. A., on fossil tertiary shells of Sicily, 183.

Phillips, Mr. J., on waste of Yorkshire coast, 304.

Phlegraean fields, volcanoes of, 373.

Physical Geography. _See_ Geography.

Pietra Mala, inflammable gas of, 11.

Pigs, instincts of, 595.
----, swim to great distances, 635.
----, fossil, 723.

Pilla, M., on Monte Somma, 382.

Pindar cited, 398.

Pingel, Dr., on subsidence of Greenland, 530.

Pisolitic limestone of France, 120.

Pitch lake of Trinidad, 250.

Plants, carboniferous, wide geographical range, 160.
----, varieties in, produced by horticulture, 588.
----, extent of variation in, 589.
----, their geographical distribution, 97, 112, 613.
----, dispersion of, 618.
----, stations of, 614, 669.
----, equilibrium among, kept up by insects, 672.
----, number of terrestrial, 705.
----, imbedding of, in subaqueous deposits, 742, 765, 770.
----, on number which