CONTENTS. 



XII. Notices and Extracts from the Minute-Book of the Geological So- 



ciety p. 131 to 141 



1. On the Iron-Sand Formation of Sussex. By Gideon Mantell, Esq. 

 F.G.S. F.R.S. F.L.S. SfC. In a Letter to Dr. Fitton, Secretary 



to the Geological Society p. 131 



2. Section of a Well sunk at Streatham Common, in the County of Surrey. 



By Mr. Thomas Yeats. Jn a Letter addressed to Brown, Esq. 



Secretary to the Westminster Fire-Ofjice ; and by him communicated 



to the Geological Society. ....... p. 135 



3. Notice respecting the Quartz-rock ofBromsgrove Lickie. By Mr. 

 James Yates, F.G.S, . . p. 137 



4. Notice respecting the Pebbles in the Bed of Clay which covers the 



new Red Sandstone in the S.W. of Lancashire. By Dr. 'Bostock. p. 138 



5. Extract of a Letter from Alexander Gordon, Esq. to D. Gordon, 

 Esq., ofAbergeldie, describing three successive Forests of Fir em- 

 bedded in a Peat Moss ; — accompanied by Specimens. . . p. 140 



6. Notice on Carbonate of Copper, occurring in the Magnesian Lime- 

 stone, at Newton Kyme, near Tadcaster. By W. Marshall, Esq. 

 F.G.S ... p. 140 



PART II. 



XIII. Remarks on the Geology of Jamaica. By H. T. De la Beche, Esq. 



F.G.S. F.R.S. F.L.S p. 143 



XIV. Notice on the Geology of the Ponza Isles. By G. Poulett Scrope, 



Esq. F.G.S. F.R.S. Sfc p. 193 



XV. Observations on the Structure of the Border Country of Salop and North 



Wales / and of sovie detached Groups of Transition Rocks in the 

 Midland Counties. By the Rev. James Yates, M. A., F.G.S. . p. 237 



XVI. Remarks on some Parts of the Taunus and other Mountains of the 



Dutchy of Nassau ; — in Explanation of Specimens presented to the 

 Geological Society of London. By Sir Alexander Crichton, M.D. 



Knt. G.S.W. F.R.S. Sfc . p. 265 



XVII. Notes on the Geological Structure of Coder Idris. By Arthur Aikin, 



Esq. F.G.S. Sfc p. 273 



XVIII. On the Strata of the Plastic Clay Formation exhibited in the Cliffs 

 between Christchurch Head, Hampshire, and Studland Bay, Dorset- 

 shire. By Charles LyeW, Esq., F.G.S. F.R.S. F.L.S. . . p. 279 



XIX. On the Freshwater Strata of Hordwell Cliff, Beacon Cliff, and Barton 



Cliff, Hampshire. By Charles Lyell, Flsq. F.G.S. F.R.S. F.R.S. p. 287 



