INDEX. 



501 



Tertiary formations, notice of, in 

 Austria, 153, 157, 225, 230, 252 ; 

 Bavaria, 157, 330; near Bonn, 468; 

 in England, 239, 403, 481; France, 

 5, 140, 150, 161; Gallicia, 241 ; on 

 the banks of the Iravvadi, 72 ; in 

 Italy, 137 ; near La Spezia, 165; in 

 the Low Countries, 161 .; in Lower 

 Styria, 213, 230,466; Moravia, 241 ; 

 near Nice, 88; at (Eningen, 167; 

 in Portugal, 395 ; the South of 

 Spain, 465, 485. 

 Thames, Rev. W. D. Conybeare on the 



hydrographical basin of the, 145. 

 Thomas (A. Esq.), on the geology of 



Pembrokeshire, 216. 

 Tino, Isle of, composed of the lime- 

 stone system of Porto Venere, 166. 

 Titterstone-CJee-Hill, Mr. J. 11. 

 Wright's notice of the structure of, 

 387 ; on the basalt of, 401 ; Mr. Mur- 

 chison on the structure of, 472, 473. 

 Tor Bay, Mr. De la Beche on the geo- 

 logy of, 31. 

 Transition series, South of Ireland, on 



the structure of, 232. 

 Transylvania, Dr. Boue's explanatory 

 sketch of a geological map of, 242 ; 

 description of the tertiary basin of, 

 242 ; of the trachytes of, 243. 

 Trap, vast range of, in the peninsula 



of India, 419. 

 Trap of Babbacombe and Tor Bays, no- 

 tice of, 33. 

 Traun, on the age of the tertiary de- 

 posits of, 230, 252. 

 Traunsee, section at the foot of, 155. 

 Treasury, Lords Commissioners of His 

 Majesty's, thanks of the Society 

 voted to, for the grant of apartments 

 in Somerset House, 74. 

 Trevelyan (W. C, Esq.), on a whin 

 dyke in Cooper Colliery near Blythe, 

 Northumberland, 23. 

 Trimmer (J. Esq.), on the diluvial de- 

 posits of Caernarvonshire, between 

 the Snowdon chain and the Menai 

 Strait, and on the discovery of marine 

 shells in sand and gravel on the sum- 

 mit of Moel Tryfane, 331 ; on the 

 discovery of recent marine shells on 

 the left bank of the Mersey, 419. 

 United States, Mr. Featherstonhaugh 



on the series of rocks in the, 91. 

 Untersberg, section from, to the plains 



north-east of llichenhall, 156, 252. 

 Ure (Dr.), Prof. Sedgwick's remarks 

 on the new system of geology of, 

 208. 

 Vale of Bredy, structure of, 218. 

 Valley of Weymouth, structure of, 

 218. 



Valleys, Mr. Scrope on the gradual 

 excavation of, 170 ; Prof. Sedgwick 

 on the excavation of, 191 ; Mr. Lyell 

 and Mr. Murchison on the excava- 

 tion of, as illustrated by the volcanic 

 rocks of Central France, 89. 



Valuation of Society's property, Dec. 

 31st 1826, 14 ; 1827, 45 ; 1828, 104 ; 



1829, 184; 1830, 268; 1831, 358; 

 1832, 434. 



Vauquelin (M.), notice of, in the obi- 

 tuary of the President's Address 



1830, 188. 



Verschoyle (the Venerable Archdea- 

 con), on the geology of the north- 

 west of Mayo and Sligo, 407. 



Vesuvius, Count de Montlosier on the 

 ancient and present state of, 337 ; 

 Monticelli on the curvilinear struo 

 ture of lava of, 396. 



Vienna sandstone, description of, by 

 Dr. Boue, 224. 



Volcanic island raised off the coast of 

 Sicily in 1831, account of, 338. 



Volcanic rocks of Central France, Mr. 

 Lyell and Mr. Murchison on the 

 excavation of valleys, as illustrated 

 by the, 89. 



Votes of thanks to retiring Vice-Presi- 

 dents, Officers and Members of the 

 Council 1827, 16; 1828, 50, 74; 

 1S29, 112; 1830, 186*; 1831, 270; 

 1832, 360; 1833, 436. 



Wand, structure of the, 253. 



Ward (Dr.), sketch of the geology of 

 Pulo Pinang and the neighbouring 

 islands, 392. 



Wardour, Dr. Fitton on the geological 

 structure of the Vale of, 27. 



Weaver (Thomas, Esq.), on the geolo- 

 gical relations of the South of Ire- 

 land, 231 ; on its transition series, 

 232 ; on the metalliferous relations in 

 Kerry and Cork, 233; the carbo- 

 niferous series of Clare, 234; the 

 distribution of the diluvial matter, 

 234. 



Well water, on the influence of season 

 over the depth of, 339. 



Wellington Valley, Major Mitchell on 

 the limestone caves of, 321. 



Wetherell (N. T., Esq.), on the disco- 

 ver; of Ophiura in the London clay, 

 417 ; on the London clay of High- 

 gate Archway, 403. 



Weymouth, onthe geology of the neigh- 

 bourhood of, 217; structure of the 

 valley of, 218; on the succession of 

 changes indicated by the formations 

 in the neighbourhood of, 220. 

 Whin dyke in Cooper Colliery, de- 

 scribed bv Mr. Trevelyan, 23. 



