452 



INDEX. 



Robagiri : extracted from a letter to H. T. Cole- Stinchoombe near Dursley, remarks on the strata 



brooke, Esq., 167. of, by George Cumberland, Esq., 369. 



Secondary rocks of the country bordering on Lake Stonesfield slate, fossil remains of the Megalosau- 



Huron, ] 9 1 —204. rus in, 390. 



Sections of coal measures in Bristol coal basin, 



264—280. 



391. 



288. 



in the Forest of Dean, 



Section of Cromhall colliery in Gloucestershire, 



346. 

 Sedimentary series of rocks, 338, 347, 350. 

 Seine Inferieure, department de la, 74. 

 Serpentine occurs at Muscat in Arabia, 409. 

 Severn, probability of unexplored coal measures 



in the valley of, 247, 264. 

 dolomitic conglomerate on the banks of, 



297. 



■ black lias shale in the estuary of, 30 ] . 



lias in the valley of, 304. 



old red sandstone on the banks of, 339. 



Shale, lower coal, of Bristol coal basin, 253. 



upper ditto, ditto, 260. 



Shells, fossil, of lias, 46. 



of the crag strata at Bramerton enumerat- 

 ed, 373. 

 Shepton Mallet, lias conglomerate near, 303. 

 Siam, islands off the coast of, 407. 



■ mountains of, 407. 



Sierra Leone, hills composed of sienite porphyry 



in, 418. 

 Singapore, rocks of, 165, 406. 

 Slate, black, bituminous, or domanite, 12. 



clay, in Himalaya mountains, 134. 



Somersetshire, geological observations on the 



north-west of, by Thomas Weaver, Esq., 317. 

 South Wales, eastern boundary of the great coal 



basin of, 216. 

 Sphene in Glen Tilt, 65. 

 St. Joseph Island in Lake Huron, limestone of, 



195. 



the Didelphis or Opossum in, 



birds in, 392. 



elytrons of a beetle in, 392. 



vegetable remains in, 392. 



' striking analogy between the fos- 



sil contents of, and those of the ferruginous sand 

 at Cuckfield, 394. 



Stokes, Charles, Esq., notice accompanying spe- 

 cimens of lead ore, found in toadstone, from 

 near Matlock, Derbyshire, 163. 



■ notice on a recent deposit of 



compact limestone, 166. 



on a trilobite from Lake Hu- 



ron, 208. 



Strachey, Mr., his memoir on the Bristol coal basin, 

 published in the Philosophical Transactions in 

 1719,313. 



Strangways, Hon. William T. H. F., on the geo- 

 logy of Russia, 1 . 



Strontian, sulphate of, in dolomitic conglomerate, 

 292. 



——— ■ in upper beds of new red 



sandstone, 298. 



' — ' in transition limestone, 324. 



in transition trap, 325. 



' — various formations in which 



it occurs, 349. 



Submarine forest at St. Laurent on the coast of 

 Calvados, 88. 



Siibuk river in Bhotan, strata on its banks de- 

 scribed, 139. 



Suffolk, on the alluvial strata and on the chalk of, 

 374. 



■ on the strata observed in boring at Mil- 



denhall in, 379. 



orthocerae of, described, 196, 197. Sumatra, on the geology and topography of the 



St. Vincent's rocks, 241 . island of, by W. Jack, M.D., 397. 



St. Jago, some account of the strata at Porto Praya general view of the physical structure of. 



in, 419. 

 Steppe, primitive, in Russia, 36. 



calcareous, ditto, 36. 



salt, ditto, 37. 



397. 



402. 



incorrectness of former maps of, 398. 

 volcanic mountains in, 398, 400, 401, 



