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INDEX.
359
tremely irregular, 33. Its superficial and local accumulations considered, 34. A chemical knowledge of, necessary for agriculture, ii. 326, et seq.
Solar heat, its influence on climate, ii. 305, et seq. Its variability, 306.
Solfatara, extinct volcano of, ii. 220.
Somerville, Mrs., her quotation of Leslie, i. 27.
South Sea Islands, their origin dissimilar to that of the Bahamas, &c., i. 139.
Sowerby, Mr., fossils of S. Devon, first figured by, i. 156.
Springs, effects of, as agents of disintegration, ii. 19. Thermal, see Thermal Springs.
Sponges, see Organic Remains.
Spruce fir, remarkable height of one at Fountain's Abbey, ii. 67.
Stabiæ, destruction of, ii. 213.
Staffa, basalt of, its analysis, ii. 95, 96.
Staffordshire, ironstone how found in, i. 165.
Stiperstones, disturbed strata at, i. 44.
Stones, meteoric, their origin, i. 32. Their ejection by volcanos, ii. 235.
Stonesfield, fossil remains In the oolite of, i. 92. 96, 97, 98. 106. 223. ii. 39.
Stony Middleton, waters of, their analysis, ii. 255.
Strabo, his account of the surface of Asia Minor, i. 1.
Strata of the earth, its age, how ascertained, i. 9. Declination of, 36. Unusual position of, 39. Sections of, 53.
Strata, Hypozoic, i. 111. Palæozoic, 124. Silurian, 136. Of the Devonian system, 154. Of the Carboniferous system, 162. Of the Permian system, 195. Of the Oolitic system, 199. Of the Mesozoic system, 203. Of the Tnassic system, 203. Of the Cretaceous system, 234. Of the Cainozoic, or Tertiary, system, 249. Of the post-tertiary system, 278.
Stratification, faults in, i. 40. Seldom produced in perfection, except by water. 45. Relative periods of disturbed, 49. Varieties of, 59. Less easily traceable in gneiss and mica schists, 115. Tables of principal disturbances of, ii. 152, et seq.
Stratified rocks, meaning of the term, i. 9. Their construction explained, 9. Their antiquity, 9. Their dip at various parts of England and the Continent, 37. Their local declination and unusual position, 39. Faults in, 40. Origin of, 45. Generally stored with reliquiæ of plants, &c., 47. Affected by subterranean movements, 48. Series of, 53. Varieties of, 59. Divisional structures in, 62. Cleavage of, 67. Historical view of, in the crust of the earth, 107. Phenomena attending igneous rocks, when in contact with, ii. 109. Induration of, 109. Experiments on temperature of, 272. Displacements of, 289.
Stratum, meaning attached to the word by different geologists, i. 59, 60.
Strickland, Mr., on the Silurian system, i. 147.
Strike, meaning of the term, i. 36.
Stromboli, its volcano always active, ii. 218.
Strontian, sienitic granite of, i. 108.
Stratification plain in the gneiss of, 115. Lead mine of, 122.
Structures, divisional, explanation of, i. 62. Superposed, 115. Of rocks, altered by heat, ii. 111.
Stutchbury, Mr., his discoveries in fossil zoology, i. 94. On the growth of coral, 330, et seq.
Styiia, Lower, basin of, tertiary series of, i. 258, 259.
Submarine and subterranean forests, ii. 57. Their antiquity, 64.
Subsidence, movements of, ii. 239.
Substances of the earth, analysis of, i. 23. 54. Number of elementary, 23.
Succession of strata, the law of, ii. 282. See Strata.
Sulphurets, formation of, ii. 198.
Sulphuric acid, its combination with the waters of Purace, ii. 215.
Superficial deposits, see Post-tertiary Strata.
Superposed structures, i. 115.
Surface of the earth, its age how ascertained, i. 11. Its waste, ii. 9. Aspect of, 318.
Sussex Weald, passim.
Sykes, Rev. C., his collection of fossils, i. 96.
Systems of the various strata, see Strata, Hypozoic, and other Strata.
Swinden, M. Van, his account of the Friesland lakes, ii. 61.
