iv TABLE OF CONTENTS. 



Page 



MuRCHisoN, Sir R. I. On the Meaning originally attached to the 

 term ' Cambrian System/ and on the evidences since obtained of 

 its being geologically synonymous with the previously established 

 term * Lower Silurian ' 165 



. Introductory note to Capt. Vicary's Memoir on the Geology 



of Sinde ; 331 



Nasmyth, James, Esq. On the Slow Transmission of Heat through 

 loosely coherent Clay and Sand 232 



Oaven, Professor. On the extinct Fossil Viverrine Fox of (Eningen, 

 showing its specific characters and affinities to the Family of Vi- 

 verridee 55 



. On the Batracholites, indicative of a small species of Frog 



{Rana pusilla, Ow.). Addendum to the paper of G. T. Clark, Esq., 



on the Neighbourhood of Bombay 224 



Prestv^ich, Joseph, jun., Esq. On the probable Age of the London 

 Clay, and its relations to the Hampshire and Paris Tertiary Systems 354 



. On the main points of Structure and the probable Age of the 



Bagshot Sands, and on their presumed equivalents in Hampshire 



and France 378 



Robertson, Alexander, Esq. On the Wealden Beds of Brora, 

 Sutherlandshire, with Remarks on the Relations of the Wealden 

 Strata and Stonesfield Slate to the rest of the Jurassic System, and 

 on the marine contemporary of the Wealden Series above the 

 Portland Stone 113 



Salter, J. W., Esq. Description of a Fossil Chiton from the Si- 

 lurian Rocks, with remarks on the fossil species of the genus .... 48 



. On the Structure of Trinucleus, with remarks on the species. 251 



Sedgwick, Professor. On the Classification of the Fossiliferous 

 Slates of North Wales, Cumberland, Westmoreland, and Lanca- 

 shire (being a Supplement to a paper read to the Society, March 

 12, 1845) 133 



Sharpe, Daniel, Esq. On Slaty Cleavage 74 



Smith, James, Esq. (of Jordan-hill). Notice of the occurrence of 

 the Elephas primigenius at Gozo, near Malta 52 



, On recent Depressions in the Land 2.34 



. On the Age of the Tertiary beds of the Tagus, with a Catalogue 



of the Fossils , 410 



Spratt, Lieut. Remarks on the Geology of the Island of Samos. . 65 



. On the Geology of a part of Euboea and Bceotia 67 



Strickland, H. E., Esq., and W. J. Hamilton, Esq., M.P. On 

 a Tertiary deposit near Lixouri, in the Island of Cephalonia .... 106 



ViCARY, Capt. N. Notes on the Geological Structure of parts of 

 Sinde 334 



Walton, John, Esq. On the Laws of Development of Existing 

 Vegetation, and the application of these Laws to certain Geological 

 Problems 64 



Whewell, The Rev. Dr. On the Wave of Translation in connexion 

 with the Northern Drift 22/ 



