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INDEX.
343
on the super-cretaceous deposits of the eastern counties, ii. 52.
Charnwood Forest, i. 68. Clay slate of, 126. 132.
Chat Moss, oak tree stumps found in, ii. 58.
Chert, how and where found, i. 234.
Cheshire, salt district of, i. 212.
Chili, volcanos of, ii. 230. Earthquakes of, 221. 241. 249. Coast of, raised by convulsive movements, 241. 291.
Chloride of sodium, chemical name for common salt, i. 210.
Chlorite schist, difference between it and mica schist, i. 113.
Christiania, sienite of, ii. 143.
Cirripeda, not common as fossils, i. 96.
Cistus helianthemum, soil peculiar for, ii. 327.
Clar, argillaceous, three kinds of, i. 246.
Clay, Kimmeridge, where found, i. 227.
Clay banks, their composition and origin, i. 341.
Clay-slate, different colours of, i. 156.
Clay-slate system, i. 124. Regarded by Sedgwick as the Cambrian, 124. Its composition, 125. Structure of. 126. Cleavage of, 127. Succession of its strata, 128. Organic remains found in, 131. Geographical extent of the system, 132. Its physical geography, 133. Its igneous rocks, 134. Clay-stone, proportion of oxygen in, i. 25.
Cleavage of rocks, i. 67. 115. 128. 137. ii. 117. A result of pressure, 117. 120. Mr. Sharpe's views of, 117. 120, et seq.
Clee Hills, position of strata in the, i. 39. The series of, how expressed, 179.
Clift, Mr., identifies teeth of hippopotamus and ox in animal remains of Georges Gmünd, ii. 47.
Climate of the earth, during early geological periods, ii. 305. Mr. 1 Lyell's hypothesis on, 305. Speculations on heat and cold as affecting, 306. Hypotheses of Sir J. Herschel and M. Poisson, accounting for varieties, 306, et seq. Difference of Atlantic and Continental climates, to what ascribed, 309.
Clwydd, Vale of, its faults, i. 44.
Coal, dip of, in Gloucestershire and Somersetshire, i. 49. In Yorkshire and Durham, 50. Always found in beds. 163. Its composition, 163. Ironstone found in its districts, 165. Structure of beds of, at Swansea. 160. Succession and thickness of strata of, 166. Organic remains found in, 177. Its inexhaustibility considered, 181. Theories accounting for the origin of, 188. Its extent under superior strata, 193. A knowledge of geology necessary for its discovery and successful extraction, ii. 331.
Coalfield, Newcastle, fault in the, 142.
Coal mines, experiments on their temperature, ii. 273.
Coalfield Dyke, account of, ii. 132.
Colchester, 'Mr., his discovery of fossil quadrumana at Kyson, i. 100.
Coley Hill, igneous rocks of, i. 68. Cleavage in, 128. 135.
Conception, destruction of, by an earthquake, ii. 221. Elevation of the strata of clav in the bav of, 241.
Conchifera, amount of, found fossil, i. 80. Table of, 83.
Coniston, slate of, i. 133.
Connemara, serpentine found in, i. 121.
Conrad, Mr., his classification of North American tertiaries, i. 264. 270.
Conybeare, Mr., his geological investigations, i. 154. 203. Reference to his "Geology of England and Wales," 183. On the "killas" of Cornwall, ii. 142.
Copper ore, the richest, at what depth found, ii. 170. Lodes, ancient and more recent, 172, 173.
Coral, in rocks of Dudley, Wenlock, &c. i. 138. Reels and islands of, their origin, 329. Labours of zoophyta in forming, 331. Peculiarity of their form, 331, et seq. See Organic Remains.
Cordier, M., his experiments on temperature of the mines of Carmeaux, ii. 274.
Cordilleras, volcanos of the, ii. 221.
Cornwall, mica schist and gneiss rarely found in, i. 58. Granitic structure of the rocks of, 108, 109. ii. 104. Survey of, by Sir H. De la Beche, 105. Alterations produced on the slaty rocks of, by proximity of granite, 108. 142. Minerals of, 156, et seq. Temperature of the mines of, 271.
Corygills, Arran, the rocks of, i. 63.
