XU ANNIVERSARY MEETING. 



1851. 



June 11th. — Section and i\.nalysis of the Permian Strata at Astley, 



Lancashire, by G. W. Ormerod, Esq., F.G.S. 

 On a Fossil Fish from the Deccan, India, by Lieut.- 



Col. W. H. Sykes, F.G.S. 



On the Physical Evidence of an Arctic Climate during 



the Formation of the Erratic Tertiaries of Great Britain, bv Joshua 



Trimmer, Esq., F.G.S. 

 June 25th. — On the Geology of the Straits of Singapore, by J. R. 



Logan, Esq., F.G.S. 

 On the Boulder Clay at Linksfield Quarry, Elgin, by 



Capt. L. Brickenden, F.G.S. 



On the Drift at Sangatte Cliff, near Calais, by Joseph 



Prestwich, Esq., F.G.S. 



On the Gravel of the Guildford Valley, by R. A. C. 



Austen, Esq., F.G.S. 



On the Geology of the Himalaya and Tibet, by Capt. 



R. Strachey, F.G.S. 

 Nov. 5th. — Notice of the Occurrence of an Earthquake at Chili. 



(Forwarded from the Foreign Office, by order of Viscount Palmer- 



ston.) 

 On the Devonian and Cambrian Rocks of Cornwall 



and Devon, by the Rev. Professor Sedgwick, F.G.S. 

 Nov. 19th. — On the Granitic Blocks of the South Highlands of 



Scotland, by William Hopkins, Esq., Pres. G.S. 

 Dec. 3rd. — On a curious Fossil Fern from the Coal at Cape Breton, 



by C. J. F. Bunbury, Esq., For. Sec. G.S. 

 On the Cambrian and Silurian Rocks which appear 



at the base of the Carboniferous chain of Yorkshire, near the Craven 



Fault, by the Rev. Professor Sedgwick, F.G.S. 

 Dec. 17th. — Note on the Quader-formation of Germany, by Prof. 



Geinitz ; communicated by Sir Charles Lyell, F.G.S. 

 On the Causes of the Changes of Climate at different 



Geological Epochs, by William Hopkins, Esq., Pres. G.S. 



Notice of the Discovery of Reptilian Foot-tracks and 



Remains in the Old Red Sandstone of Moray, by Capt. L. Brick- 

 enden, F.G.S. 



Description of the Telerpeton Elginense^ and Obser- 



vations on supposed Fossil Ova of Batrachians in the Lower Devo- 

 nian Strata of Forfarshire, by G. K, Mantell, Esq., LL.D., F.G.S. 



1852. 



Jan. 7th. — Notice of the Discovery of Boulders and Fossil Bones in 

 clefts of the rock in Portland Island, by Mr. A. Neale ; communi- 

 cated by J. C. Moore, Esq., Sec. G.S. 



On the Subescarpments of the Ridgeway Range, and 



their contemporaneous deposits in the Isle of Portland, by C. H. 

 Weston, Esq., F.G.S. 



Jan. 21st. — On the Quartz-rock of Scotland, by Daniel Sharpe, Esq., 

 V.P.G.S. 



