INDEX. 



Lyell, Charles, Esq. Page 



On the Kidges, elevated Beaches, inland CliiFs, and Boulder 

 Formations of the Canadian Lakes and Valley of St. Lawrence 19 



On the Tertiary Strata of the Island of Martha's Vineyard, 

 in Massachusetts. 31 



On the Geological Position of the Mastodon gigantewm and 

 associated Fossil Remains at Big Bone Lick, Kentucky, and 

 other localities in the United States and Canada 36 



On the upright Fossil Trees found at different Levels in the 

 Coal Strata of Cumberland, N'ova Scotia 176 



On the Coal Formation of Nova Scotia, and on the Age and 

 relative Position of the Gypsum and accompanying Marine Lime- 

 stones 184 



Mantell, G. a., LL.D. 



Notice on a Suite of Specimens of Ornithichnites on the New 



Red Sandstone of Connecticut 22 



Description of some Fossil Fruits from the Chalk Formation 



of the South-East of England 34 



Notice on the Fossilized Remains of the soft Parts of MoUusca 35 

 Mdrchison, R. I., Esq. 



Anniversary Address 65 



Observations on the Occurrence of Freshwater Beds in the 

 Oolitic Deposits of Brora, Sutherlandshire, and on the British 



Equivalents of the Neocomien System of Foreign Geologists 174 



Owen, D. Dale, M.D. 



On the Geology of the Western States of North America 1 



Pearce, J. C, Esq. 



On the Locomotive Powers of the Family Crinoidea 159 



Pratt, S. P., Esq. 



On the Geology of the Neighboiirhood of Bayonne 157 



Redfield, W. C, Esq. 



Letter on newly-discovered Ichthyolites in the New Red Sand- 

 stone of New Jersey 23 



Robertson, Alexander, Esq. 



Notice of the Occurrence of Beds containing Freshwater Fossils 

 in the Oolitic Coalfield of Brora 173 



RoYLE, Dr. 



On the Tin Mines of Tenasscrim Province 165 



Sedgwick, Rev. Professor. 



Outline of the Geological Structure of North Wales. 212 



Sharpb, Daniel, Esq. 



On the Bala Limestone 10 



On the Silurian Rocks of the South of Westmoreland and North 

 of Lancashire 23 



SiMMS, F.W., Esq. 



Account of a Section of the Strata between the Chalk and the 

 Wealden Clay in the Vicinity of Hythe 206 



Smith, Lieut. R. Baird. 



On the Structure of the Delta of the Ganges 4 



Stangeb, W., M.D. 



On the Geology of some Points on the West Coast of Africa, and 

 of the Banks of the River Niger 190 



