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INDEX.
349
not cumulative in its effects, 263. This influence modified by the refrigerating action of the planetary spaces, and the elevation of places above the level of the sea, 263, 264. The peculiar distribution of land and water, another cause productive of difference of temperature, 265. Leslie's experiments, 266. Experiments of M. Quetelet and others, 267, et seq. Daubuisson's experiments on. in mines of various depths, 270. Experiments of Mr. Fox, 271. Experiments on, in stratified rocks, by Saussure and others, 272. Experiments on, in Artesian wells, 276. Sir J. Herschel's theory of the variability of, 306. Hypotheses of various geologists accounting for changes of climate produced by solar heat, 305, 306, et seq.
Hebrides, composed of gneiss, i. 119. ii. 321.
Hecla, eruptions of, ii. 219.
Heights and depths of the earth, how ascertained, ii. 288.
Heligoland, encroachments of the sea on, ii. 33.
Kenwood, Mr., "on the shoots of mineral veins. ii. 168. 184, et seq. On the temperature of mines, 275.
Herbage, difference of, In limestone districts of England, i. 177.
Herculaneum, destruction of, ii. 213.
Herodotus, on the alluvial deposits of the Nile, i. 11. ii. 23.
Herrenschneider, M., his experiments on heat, ii. 2G7.
Herschel, Sir J., his speculations on the planetary masses, i. 31. Trilobites found by, 147. Views geology as a science, ii. 279. On the variability of solar heat, 306.
Hibbert, Dr., on the cervus megaceros, i. 320.
High Force waterfall, ii. 112.
Himalaya, height of the, i. 18. Deposits in the, 58. Application of the theory of the divisional strata of England to, 218.
Hindostan, undulations of the interior of, ii. 322.
Hippopotamus, remains of, where found, ii. 47. 68.
Hodgkinson, Mr., his experiments on the temperature of salt mines, ii. 273.
Hoffman, M., on coal of north-west Germany, i. 168.
Holderness, operation of the sea on the coast of, ii. 32. Deposits of, 54. 58.
Holland, Dr., his hypothesis respecting the Cheshire salt district, i. 212, 213.
Holland, New, coral reefs of, i. 332.
Hopkins, Mr., his remarks on the earth's solid crust, i. 28. On the rock fissures of Derbyshire, 65. On disturbances of the earth's crust, 153. 195. His theory of the formation of erratic blocks. 296. On glaciers, ii 18. On the phenomenon of cleavage, 246. On dislocations of strata and their direction, 298.
Homer, Mr., his experiments on the waters of the Rhine, ii. 33.
Hornblende, how found, ii. 84, 85. Slate, 140.
Hot springs, see Thermal Springs, ii. 200.
Huelgoat, mine of, its temperature, ii. 271.
Huel Peever mine, plan and sections of, ii. 180. et seq.
Hugi, M., his discovery of fossil remains in the Jura mountains, i. 223.
Humber, deposits at the mouth of the, ii. 32.
Humboldt, on the age of granite, ii. 148. On the new mountain of Jorulio, 204. Traces lava to summit of Peak of Teneriffe, 209. On volcanic rocks. 215, et seq. On temperature of the mines of Guanaxuato, 272. On direction of anticlinal lines, ii. 292.
Hundsruck, fossil remains of fish in the, i. 87. Elevation of, 153.
Hungary, extinct volcanos of, ii. 220. 224. 227.
Hutton, Dr., his view of Geology as a science, i. 1. 4, 5. His study of stratified rocks in Scotland and Saxony, 38. His remarks on the various opinions respecting the crust of the earth, 110. On the subterranean forests of Lincolnshire and Yorkshire, ii. 66. His doctrine of the crystallisation of granite, 10J. Objections to his theory, that the induration of rocks is attributable to the action of heat, 129. His hypothesis of the earth's construction opposed to Werner, 194. His theories considered, 284.
Hvpozoic system, strata of. i. 57. Its predominance in Scandinavia, the Alps, and Grampians, 58.
