TABLE OF CONTENTS. v 



Page 



LoBLEY, J. Logan, Esq. On the Principal Features of tlie Strati- 

 graphical Distribution of the British Fossil Lamellibranchiata . . 411 



Login, T., Esq. Memoranda on the most recent Geological Changes 

 of the Rivers and Plains of Northern Lidia, founded on accurate 

 Surveys and the Artesian Well-boring at Umballa, to show 

 the practical application of Mr. Login's Theory of the abrading 

 and transporting power of water to effect such changes. [Ab- 

 stract.] 451 



Mjeyer, C. J. A., Esq. On Lower Tertiary Deposits recently ex- 

 posed at Portsmouth 74 



Mitchell, W. Stephen, Esq. Some Remarks on the Denudation 

 of the Oolites of the Bath District, with a Theory on the Denu- 

 - dation of Oolites generally. [Abridged.] 228 



Murphy, Joseph John, Esq. On the Connexion of Volcanic Action 



with Changes of Level. [Abstract.] 108 



Prestwich, Joseph, Esq. On the Structure of the Crag-beds of 

 Suffolk and Norfolk, with some Observations on their Organic 

 Remains. — Part I. The Coralline Crag of Suffolk. (With a 

 Plate.) 115 



. . Part n. The Red Cra^ of Essex and Suffolk. ... 325 



. . Part m. The Norwich Crag and Westleton Beds. 



(With a Plate.) 453 



Ramsay, Prof A. 0. On the Physical Relations of the New Red 



Marl, Rhastic Beds, and Lower Lias 189 



. On the Red Rocks of England of Older Date than the 



Trias 241 



Sawkins, J. G., Esq. Geological Observations on British Guiana. . 419 



Scott, Robert H., Esq. Notes on the Minerals of Strontian, 



Argyllshire 872 



Stow, G. W,, Esq. On some Points of South- African Geology. — 



Part 1 28, 497 



. . Partn 52,523 



. . Part III 534 



Tate, Ralph, Esq. On the Age of the Nubian Sandstone 404 



Trevelyan, Sir W. C, Bart. On supposed Borings of Lithodomous 



MoUusca. [Abstract.] 231 



Whitaker, Wllliam, Esq. On the Chalk of the Cliffs from Sea- 

 ford to Eastbourne, Sussex. [Title only.] 92 



. On the Chalk of the Southern Part of Dorset and Devon . . 93 



On the Cliff-sections of the Tertiary Beds west of Dieppe 



in Normandy, and at Newhaven in Sussex 263 



