442 



INDEX. 



Bitumen, 36. 



Black earth, 24. 



Bletchingley, on the fossils of the blue chalk marl 

 at, 421. 



Blue clay, agreeing in geological position with 

 Oxford clay, at Vaohes Noires in Calvados, Tl . 



Blue chalk marl at Bletchingley, notice on the fos- 

 sils of, 421. 



Blue marl at Havre, crocodile in, 1&. 



at Vaches Noires, crocodile in, IT . 



Bogdo, mount, 38. 



Bolgary, ruins of, 29. 



Bombarak rock, in the Persian Gulf, 410. 



Bones offish in lias, 43, 44. 



of fishes in mountain limestone, 224. 



fossil, in diluvium, 308. 



of birds in Stonesfield slate, 392. 



in iron sand, 394. 



Borovichy,on the Msta, strata in the neighbourhood 

 of, 14. 



Brahm-putra river, geology of the mountains 

 through which it passes, 132. 



Bramerton, section of the crag strata at, 372. 



fossil remains in do. at, 372. 



fossils in the chalk at, 377. 



Brandon hill, above Bristol, millstone grit of, 252. 



Brazilian diamond, on the matrix of, 419. 



Breislak, Scipio M. on the gypsum of Monte Seano, 

 translated from a letter to G. B. Greenough, 

 Esq., 169. 



Bridport harbour, Dorset, geology of the coast near, 

 40. 



Bristol coal basin, boundary of, 214. 



rocks composing its frontier, 220. 



old red sandstone of, 221. 



mountain limestone of, 222. 



fault on the western side of, from Clevedon 



to near Portbury, 238. 



— — — on the eastern frontier of, 249. 



on the coal measures of, 249. 



quantity of coal worked in, as compared 



with other English coal basins, 263. 



Broadfield down in Somersetshire, 366. 



Buckland, the Rev. W., on the excavation of val- 

 leys by diluvian action, as illustrated by a suc- 

 cession of valleys which intersect the south coast 

 of Dorset and Devon, 95. 



Buckland, the Rev. W., and the Rev. W. D. Co- 



nybeare, observations on the south-western coal 



district of England, 210. 

 notice on the Megalosau- 



rus, or great fossil lizard of Stonesfield, 390. 

 Bunbury, Sir Henry, Bart., on the strata observed 



in boring at Mildenhall in Suffolk, &c., 379. 

 Bushire in the Persian Gulf, 412. 

 Byerley, Joseph, Esq., extract of a letter dated 



Sierra Leone, &c., 418. 



Caen, freestone of, similar in geological position to 

 the freestone of Bath, T^. 



Calamine, frequent in dolomitic conglomerate, 

 293. 296. 



in mountain limestone, and dolomitic 



conglomerate, 367. 



Calcareous conglomerate : see Dolomitic conglo- 

 merate. 



Calcareous spar, 7 1 . 



Calcedony in micaceous schist in Glen Tilt, 7 1 . 



Cally in Kircudbrightshire, copper mine at, 164. 



Calvados, department of, 86. 88. 



Carboniferous limestone : see Mountain limestone. 



Carpolithus Mantellii described, 423. 



Caspian Sea, supposed ancient connexion of, with 

 lake Aral, 37. 



— level of, lower than Black Sea, 38. 



Caverns, how occasioned in dolomitic conglome- 

 rate, 292. 



Caves in mountain limestone, 223, 224. 



Caucasus a primitive chain, 38. 



oolite and chalk of, 38. 



Chalk, with flint and pyrites, of Caucasus, 38. 



— of the coast of Dorsetshire, 40. 



in the cliff's of the coast of the Department 



de la Seine Inferieure, 74. 



in France covered by beds of flint gravel 



100 feet in thickness, 75. 

 formed once a continuous stratum from 



Dorsetshire to the west of Exeter, 100. 

 of Norfolk and Suffolk, and its fossils. 



Richard Taylor, Esq. on the, 374. 

 eastern limit of, in Norfolk, 375. 



