NDEX TO THE PROCEEDINGS. 



Samos, Lieut. Spratt on the geology of, 

 65. 



Sandown Bay, section at, 316. 



Scalaria tenera, n. sp=, 420. 



Scania, Sir R. I. Murchison on the geo- 

 logy of, 32. 



Scaphites and Crioceras, Mr. Sowerby 

 on, 303. 



Scaphites Hillsii, 303. 



gigas, 303. 



Scaphodus, shown to be a portion of 

 Elasmodus, 353. 



Scilly islands, proofs of their recent de- 

 pression, 238. 



Sedgwick, Prof., on the classification of 

 the fossiliferous slates of N. Wales, 

 Cumberland, Westmoreland and Lan- 

 cashire, 133. 



Serapis, Mr. Babbage on temple of, 186. 



, Mr. Smith on temple of, 234. 



Shanklin, section at, 316. 



Sharpe, Mr., on slaty cleavage, 74. 



, letter to Mr. Smith on the ter- 

 tiary beds of the Tagus, 423. 



Sidney, New South Wales, geology of 

 its vicinity, 241. 



Silurian rocks of Sweden, Sir R. I. 

 Murchison on,l ; comparison of, with 

 those of Russia and Britain, 36. 



fossils in Gothland, list of, 28-30. 



rocks of North Wales, Prof. Sedg- 

 wick on, 133 ; Sir R. L Murchison on, 

 165. 



rocks of South Wales, Prof. Sedg- 



vnck on, 150, 154. 



* Silurian system,' Sir R. L Murchison 

 on use of the term, 36, 165. 



, Prof. Sedgwick on its limits, &c., 



159. 



Sinde, Capt. Vicary on the geology of 

 parts of, 334. 



Slaty cleavage, Mr. Sharpe on, 74. 



Smith, Mr. J., of Jordan-hill, on the 

 occurrence ofElephas primigenius at 

 Gozo, 52. 



, on recent depressions in the land, 



234. 



, on the tertiary beds of the Tagus, 



410. 



Smoland, Sir R. L Murchison on the 

 geology of, 16. 



Snowdon, lines of cleavage near, 91. 



Soller island, Dalecarlia, geology of, 5. 

 Southampton, fossils from the Bognor 



beds at, 367. 

 Sowerby, Mr. G. B., descriptions of fos- 

 sils from the Tagus, 417. 



Sowerby, Mr. J. D. C, on Scaphites and 



Crioceras, 303. 

 SpJienophyllum erosum, 430. 



^^V^fer, Mr. Sharpe on distortions in, 78. 



Spratt, Lieut., remarks on the geology 

 of the island of Samos, 65. 



, on the geology of a part of Eubcea 



and Boeotia, 67. 



Stonesfield slate, Mr. Robertson on its 

 position, 116. 



Strickland, Mr., and Mr. Hamilton on 

 part of Cephalonia, 106. 



, on fossils from Cephalonia, 



112. 



Sweden, Sir R. I. Murchison on the Si- 

 lurian rocks of, 1, 36. 



Swindon, Rev. P. Brodie on the exist- 

 ence of Purbeck strata with remains 

 of insects at, 53. 



Tagus, Mr. Smith on the age of the 

 tertiary beds of the, 41 ; catalogue 

 of fossils from, 411 ; description of 

 new species found in them, by Mr. 

 G. B. Sowerby, 417. 



Tasmania, Mr. Jukes on the geology of 

 portions of, 245, 



Tertiary formations of England and 

 France, comparison of, 359, 400. 



of the Tagus, Mr. Smith on the 



age of, 410. 



Tetragonolepis, from Eastern Virginia, 

 277. 



Tintagel, notice of its fossils, 1&. 



Translation, Dr. Whewell on wave of, 

 227. 



Tremadoc, section near, 139. 



Trinucleus, Mr. Salter on structure of, 

 251. 



Trinucleus ornatus, 252. 



fimbriatus, 252. 



Tufa, calcareous, deposits of, on Hala 

 mountains, 345. 



Turritella bicarinata, n. sp., 421. 



(Profo, Def.) mutabilis, n. sp., 



221. 



Van Diemen's Land, Mr. Jukes on its 

 geology, 241, 245. 



Vegetation, Mr. Walton on the laws of 

 the development of existing, 64. 



Vicary, Capt., on the geology of parts 

 of Sinde, 334. 



Virginia, Mr. Lyell on coal-field of the 

 James river near Richmond in East- 

 ern, 261 ; Mr. Bunbury on plants from 

 coal-field of, 281. 



Viverrine fox of (Eningen, Prof. Owen's 

 description of the, 55. 



Vivian, Mr., on Kent's Cavern, Tor- 

 quay, 353. 

 Valuta spoliata, n. sp., 422. 



Wales, Prof. Sedgwick on the fossil 

 slates of North, 133. 



, system of South, 150. 



Walton, John, Esq., on development of 

 existing vegetation, 64. 



