in the Neighbourhood of Birmingham, 



37' 



Many other specimens have also been found embedded in 

 rounded masses of various kinds of rock ; but they have sus- 

 tained so much injury in fracturing them, that their charac- 

 ters could not afterwards be satisfactorily exhibited. 



The upper surface of this gravel in some places is covered 

 by a bed of fine drift sand to a depth of 20 or 30 ft., dipping 

 occasionally between the gravelly deposits to a still greater 

 depth, and exhibiting in its present exposed condition a 

 striking illustration of diluvial contortions, much resembling 

 figs. 123. and 124. in Vol. I. p. 260. 



The low gravelly beds of Warwickshire, particularly in the 

 vicinity of Leamington and Stratford upon Avon, appear to 

 be composed almost wholly from the ruins of the lias and 

 oolitic series of rocks, abounding with rounded fragments of 

 Ammonites, Gryphae'ae, Belemnites, vertebrae, &c. 



The vicinity of Newport, in Shropshire, presents a remark- 

 able instance of the extent and direction to which these last- 

 mentioned fossils have been swept by a diluvial current, as 

 the Gryphae'se, in particular, are to be found in considerable 

 abundance in almost every gravel-pit in that neighbourhood, 

 mixed occasionally with large fragments of rocks much re- 

 sembling the Aberdeen granite. 



The scarcity or apparent absence of these fossils in the 

 gravel at Smethwick appears to be somewhat extraordinary, 

 as its position is not very remote from the sites to which they 

 belong ; and more particularly so, as it would appear, from the 

 accumulation of flints at this spot, that the lias and lower 

 oolite beds must have been exposed to the same denuding 

 force, as that which had effected such deposits from the chalk 

 formation. I am, Sir, &c. 



Birmingham, May 5. 1830. Frederick Jukes. 



