

54 



CLAYS AND SHALES. 



Upper 

 Gallery. 



Wall-case 41 



The clays 135 and 136 contain fossil leaves 



Wall-eases 57 and 58. 



See 



137. — Clay, containing small rounded fragments of Chalk 



forming 



bricks. — Hitcham 



son. 



drift 



Presented by Captain Ibbet- 



138. — Clay, filling a fault between New Red Sandstone 



Wenlock 



May H\ 



139.— Red mottled clay, from the lower part of the 

 Plastic Clay series, used extensively for making coarse red 

 earthenware. 



Some of the oldest potteries in England have obtained 

 their clay from the pits in the locality, which still furnish 



* 



sufficient coarse pottery to supply the neighbouring districts. 

 Crendle Common, near Cranbome, Dorset. 

 140. — Clay, occuring in thin bands in Upper Green 



Sand. 



tftesbury, Dorset 



141. — Clay, from beneath the " sulphur coal," Coalbrooke 

 Dale, used for making coarse pottery. — Broseley, Salop. 



142. 



Northleach 



These beds, which are sometimes 150 feet thick, were first 

 called the " Fullers'-earth clay," by William Smith, because 

 in places they contain that substance. The name applied 

 to the whole " formation" has passed into geology. — A. C. R. 



143.— Upper lias clay, Northleach. — Gloucestershire. 



144. — Clay, containing recent shells. Compare with 

 154 and 155. Under favourable circumstances the shells of 



become fossillized like those of 154 and 155. 



144 might 

 Outside the 



Weymouth, Dorset, 



145. — Sandy pipe clay, containing numerous leaves of 



trees. {From Plastic Clay). 



Dorset, 



146. 



Measure 



D 



f/< 



i 



147 



•Fire clay, (from Coal Measures,) used for making 



fire bricks. — Stourbridge, Worcestershire. 



148. 



(« 



Coal 



* 



'A 





> i r° ! 





)oV 



Hl- 



ii 



■ las l> 



,' 



153.- 



Idl- 



er 



Ifataii 



loo.— 



hni 



loo to 



tor, indk 

 to coal. 



156.— 



% 



18 ( 



1 



Bit, 



01 % 



« 



?n 



