INDEX. 



675 



Decken, M. von, on granite veins in Corn- 

 wall, 441 ; on reptiles in Saarbriick coal-field, 

 396. 

 De Koninck, M., cited, 184, 188. 

 ...., on Kleyn Spawen tertiaries, 1S4. 

 De la Becho, Sir H., cited, 293, 297, 327. 



..., on Carrara marbles, 612. 



. . . , on clay-beds, 329. 

 .., on clay-ironstone, 386. 



. . ., on coal-measures near Swansea, 359. 



. . ., on fossil trees, South Wales, 373. 



..., on granite of Dartmoor, 593. 



. . ., on mineral veins, 623, 625, 629. 



. . ., on term supracretaceous, 103. 



..., on trap of new red sandstone period, 

 555. 

 Delesse, M., analysis of minerals, 475. 



. . ., on basalt, 466. 



..., on hypersthene rock, 473. 



..., on hypogeno limestone, 597. 



. . ., on laterite of Antrim, 471. 



. . . , on pyroxene, 465. 



. . ., on serpentine, 474. 

 Deluge, 4. 



Denudation explained, 66. 

 .... of the Weald Valley, 271. 

 . . . ., terraces of, in Sicily, 75. 



, of volcanic craters, 504, 507. 



Derbyshire, lead-veins of, 627. 

 Deshayes, M., identification of shells, 184. 



, on fossil 6hells in Hungary, 544. 



. ..., on lower eocene shells, 228. 



, on tertiary classification, 115. 



. . . ., on upper marine strat3, 184. 

 Desmarest, on trappean rocks, 91. 

 Desnoyers, M., on Faluns of Touraine, 111. 

 Desor, M., on glacial fauna in Noith America, 



139. 

 Devonian system, term explained, 419. 

 .... series of North Devon, 420. 

 .... series of Eussia, 425. 

 .... series of United States, 426. 

 De Wael, M., on Antwerp strata, 173. 

 Diagonal, or cross stratification, 16. 

 Diatornacece, in tripoli, 25. 

 Biceras arietinum, 304. 

 Dicotyledonous leaves in lover chalk, 266. 

 Bidelphys Azarm (recent), jaw of, 311. 

 Bidyrnograpsus geminus, D. Murchisoni, 



442. 

 Dike in St. Helena, 528. 

 Dikelocephalus Minnesotensis, 453. 

 Dikes at Palagonia in Sicily, 529. 



defined, 6. 



.... in Scotland, 477. 



.... of Somma, 526. 



...., trappean, crystalline in centre, 476, 48S. 



Diluvium, popular explanation of term, 138. 



Dinornis of New Zealand, 165. 



Dinotfierium giganteum, skull of, 176. 



Dinotherium in India, 182. 



Diorite, or greenstone, 467, 472. 



Dip, term explained, 53. 



Biplograpsus folium, D. pristis, 442. 



Dirt-bed of Purbeck, 297, 300. 



Dolerite, or greenstone, 466, 473. 



Dolomite defined, 13. 



Dolomitic conglomerate, 354. 



Domite, or earthy trachyte, 473. 



Done, M. B. de, on volcanoes of Velay, 552. 



Drift, contorted, near Cromer, 134. 



... in Ireland, 137. 



... in Norfolk, 132. 



..., meteorites in, 151. 



. . ., northern, in Scotland, 130. 



. . ., northern, in North Wales, 136. 



... of Scandinavia, North Germany, and Eus- 

 sia, 126. 



. . . period, climate of, 145. 



. . . period, subsidence in, 141. 



. . . shells in Canada, 140. 

 Dudley limestone, 435. 



, shales of coal near, 593. 



Dufrenoy, M., on granite of Pyrenees, 593. 



Dufrenoy, M., on Hill of Gergovia, 558. 

 Duff, Mr. P., on reptile of old red, 412. 

 Dunker, Dr., on Wealden of Hanover, 264. 

 Dura Ben, yellow sandstone of, 412. 

 Dysaster ringens, inferior oolite, 315. 



Echtnodeems of coralline crag, 172. 

 Eehinosphcerites Balthicus, 440. 

 Echinus, with Crania attached, 23. 

 Egerton, Mr., on fossils of Southern India, 255. 

 Egerton, Sir P., on fish of marl-slate, 353. 

 . . . ., on fossil fish of Connecticut beds, 349. 



, on fossils of Isle of Wight, 212. 



, on saurians and fish in new red sand- 

 stone, 836. 

 . . . ., on Ichthyosaurus, 322. 

 Egg-like bodies in Old Bed Sandstone, 417. 

 Eggs, fossil, of snake, 125. 

 Ehrenberg, Prof., on bog-iron-ore, 26, 



, on infusoria, 25. 



. . . ., on Silurian foraminifera, 444. 

 Eifel, volcanoes of, 538-543. 

 Elephant-bed, Brighton, 287. 

 Elephas primigenius, tooth of, 165. 

 Elgin, reptile of old red, found near, 412. 

 Elvans of Ireland and Cornwall, 629. 



, term explained, 581. 



Encrinite, plate of, overgrown with Serpulat 



and Bryosoa, 307. 

 Encrinite of Bradford, 307. 

 Encrinus liliiformis, 334. 

 Eocene foraminifera, 227. 



. . formations, 207. 



. . formations in England, 208. 



. . granite, 576. 



.. strata in France, 194, 222. 



. . strata in United States, 231. 



. ., term defined, 115. 



. ., upper, near Lou vain, Belgium, 176. 



. . volcanic rocks, 553. 

 Eppelsheim, Dinotherium of, 176, 191. 

 Equisetacese of coal-period, 864 

 Equisetites oolumnaris, 333. 

 Equisetum of Virginian oolite, 331. 

 .... giganteum of S. America, recent, 864. 

 Equus caballus, tooth of, 166. 

 Erman on meteoric iron in Eussia, 151. 

 Erratics, Alpine, 146. 

 . . . ., northern origin of, 128. 

 Eschara distioha, chalk, 248. 

 Escharina oceani, chalk, 248. 

 Escher, M, on boulders of Jura, 149. 

 Estheria t, Eichmond, U. S., 331. 

 Etna, deposits of, 523. 

 Eunomia radiata, 306. 

 Euomphalus pentagulatus, 407. 

 Euphotide, 473. 

 Eurite, 564, 590. 



Euritic porphyry describod, 462. 

 Extracrinus Briareus, lias, 32.1. 



F altos of Touraine, 111, 175. 

 Faluns, comparison of, and crag, 177. 

 Falunian type, distinctness of, from Eocene, 



179. 

 Falconer, Dr., on Sewalik Hills, 182. 

 Falkland Islands, 88. 

 Farnham, phosphate of lime near, 251. 

 Fascicularia aurantium, 171. 

 Fault, term explained, 62. 

 Faults, origin of, 64. 

 Fanosites Gothlandica, 435 ; F. polymorpha, 



422. 

 Faxoe, chalk of, 238. 

 Felts tigris, tooth of, 167. 

 Felixstow, remains of cetacea found near, 173. 

 Felspar, varieties of, 453. 

 Fenestella retiformis, 352. 

 Ferns in coal-measures, 361. 

 Fife, altered rock in, 481. 

 Fifeshire, trap-dike in, 557. 

 Fish, oldest, in Upper Ludlow, 481. 

 Fishes, fossil, of Upper Cretaceous, 249. 

 .... of Brown-coal, 540. 



