Discovery qftheKeuper in England and Wales. 107 



identified these with the remains of the Phytosaurus, which in 1835 

 he saw in the Museum at Wirtemberg; and, as this genus has hitherto 

 been found in no other formation than the Keuper, it leaves little 

 doubt as to the identity of the Warwick sandstone with the Keuper- 

 sandstone of Germany. Fragments of vegetables also are dispersed 

 through the Warwick sandstone, in the same state of imperfect pre- 

 servation as the greater part of those in the Keuper of Stuttgard. 



In October 1836, further remains, apparently of Phytosaurus, were 

 found at Warwick by Dr. Lloyd of Leamington, who is engaged in 

 tracing the extent of the Keuper throughout this district. 



Dr. Buckiand has also recognised the Keuper-sandstone in the 

 quarries of Sutton Mallet near Bridgewater j and of Rumwell Heale 

 and Oake near Taunton ; the latter have supplied the freestone used 

 in the towers and bridges at the town of Taunton. 



In the cliffs at Oreham, two miles E. of Exmouth, there are beds 

 of sandstone, probably referrible to the Keuper formation, which have 

 supplied the olive-coloured sandstone of which the cathedral of Exeter 

 is built ; and at Pyle, in Glamorganshire, a few miles E. of Neath, a 

 valuable building-stone lately employed in constructing the castle of 

 Margum, is obtained from strata, which the author also refers to the 

 Keuper-sandstone of Germany. 



Mr. Murchison has noticed Keuper-sandstone in several localities 

 in Gloucestershire and Worcestershire, near Tewkesbury and Ne- 

 went. 



A paper "On the Geological Structure and Phenomena of the north- 

 ern part of the Cotentin, and particularly of the immediate vicinity 

 of Cherbourg," by the Rev. W. B. Clarke, F.G.S., was then read. 



In an account of the Cotentin published in the 35th volume of 

 the Journal des Mines, M. Alexander Brongniart gives a full account 

 of the limestone, slates, quartz rock and syenite or granite com- 

 posing the country; but the chief object of that memoir is to prove 

 the comparatively recent origin of the granitic rocks. 



Mr. Clarke, in detailing the characters of the formations follows 

 closely the account of M. Brongniart, and adopts fully the views of 

 that geologist respecting the age of the granite. He also quotes 

 Prof. Sedgwick's observations on the comparatively recent origin of the 

 granite of Cornwall, and the adjacent portion of Devonshire; and 

 points out the general agreement in structure of that district with 

 the Cotentin. The characters of the formations are further noticed 

 in the abstract of the paper given in No. 48 of the Proceedings. 



Feb. 22 — A paper on the Geology of Cutch, by Captain Grant, of 

 the Bombay Engineers, and communicated by Charles Lyell, Esq., 

 F.G.S., was read. 



This district, so highly interesting on account of the phenomena 

 which accompanied the earthquake that devastated it in 18 If)*, is 

 situated near the eastern branch of the Indus, between 22 and 24 

 degrees of north latitude, and 68 and 72 degrees of east longitude. 

 On the north, it is bounded by the Grand Runn, and the Thur or 



* A collection of papers relative to this earthquake appeared in Phil. 

 Mag. First Series, vol. Ixiii. p. I05etseq. 



P2 



