Beds " of the Keuper in the counties of Somerset and Devon, 50.
Pterygotus, occurrence of, in the Upper Silurian rocks in Herefordshire, 235.
Pycnodonti, 379.
Pyrites, iron, arsenical, magnetic, and copper, associated with gold, in the " Nuggetty Reef," 334.
Pyrrhotine, 273.
Quaker's yard junction, the river Taff near, 66.
Quartzites of Venuzuelan Guyana, 346.
Quaternary gravels, Mr, A. Tylor on, 57.
Quercus, 359.
Quinte gold-mining district, 266.
Ramleh, plain of, 25, 26, 31.
Rattray, Dr. A., on the geology of the Cape-York peninsula, Australia, 297.
Reef, Barrier, of Australia, formation of the, 303.
"Regur" in Abyssinia, 405.
Rhamnus, 359.
Rhondda valley, transverse section of, 76 ; section of pit in, 77.
Rhotomagian stage, 239, 241, 244, 246.
Rippon Tor, rocking-stone at, 279.
River-beds, table of Mammalia from, 195.
Rocking-stones, 279.
Rock-surfaces, smoothed, 418.
Rodentia of the Somerset caves, 444.
Rogers, Mr. A., on the geology of the country surrounding the Gulf of Cambay, 441.
Rothliegende, supposed beds of, 291.
Rottingdean, section of the cliff east of the gap at, 81.
Rowney, Dr. T. H., and Prof W. King, on the so-called " Eozoonal " rock, 115.
Ruschhaupt, Mr. F., on the salt-mines of Saint Domingo, 256.
Rushton Spencer, Permian outlier at, 178.
Russia in Europe, geological structure of, compared with that of North- western Siberia, 1.
Rutile, occurrence of, in Hastings county, Canada West, 271.
Rye-loaf Hill, section through, 63,
Sasou, Wady, 30, 31.
Saint Domingo, salt-mines of, 256.
St. John, syenite of the vale of, 435.
Salcombe Mouth, section through, 155.
Salisbury, section of gravels near, 78 ; musk-ox found near, 78.
Salles, section through, 240.
Salsette, basalt dykes of, 164, 168. , basalt dykes of the mainland of India opposite to, 163.
Salter, Mr. J. W., and Mr. Henry Hicks, on some fossils from the " Menevian group," 51.
Salt-mines of Saint Domingo, 256.
Sandberger, Dr. F., on a section of a well at Kissingen, 4.
Sandford, Mr. W. A., on the rodentia of the Somerset Caves, 444.
Sandringham, Red Chalk at, 190.
Sandstone, "Nubian," in Arabia Petrsea, 27.
Sangatte cliff, section of, from the beach, 82.
San Isidore, section from, to Bolivar, 347.
Santonian stage, 239, 242, 244, 246.
Sarabut e Gammal, 25.
Sarabut el Khadem, 26, 31.
Saurian, gavial-like, from Kimmeridge Bay, Mr. J. W. Hulke on a, 390.
Saurian, humerus of a, from the Kimmeridge Clay of the Dorset coast, 386.
Saurian, new Acrodont from the Lower Chalk, 442.
Scarrey Tor, 274.
Scheick, Wady el, 37.
Schists, Talcose, of Venezuelan Guyana, 345.
Schonborn Well, at Kissingen, 4.
Scotland, Postglacial Mammals of 207.
Scudder, Mr. S. H., on the Fossil Myriopods of the Coal-formations of Nova Scotia and England, 441.
Sea-level, changes in the, during the Glacial period, Mr, A. Tylor on, 7.
Seaton, section through, 155.
Section to illustrate the position of the supposed axis of elevation, and its relations to the Triassic and Permian rocks under the Plain of Cheshire, 181 ; of Hunstanton Cliff, 185 ; of the Cretaceous Beds of the Charente, 240 ; of the Cretaceous Beds of the coast of Provence be- tween Le Beausset and Marseilles, 240 ; of the fresh water Upper Cretaceous beds of Fuveau, 242 ; of the Cretaceous beds of Algeria, 245; transverse, of a vein of spathose- iron-ore in the Brendon Hills, 255 ; longitudinal, of a vein of spathose- iron-ore in the Brendon Hills, 256 ; showing granite in mica-
