Geology of England and Wales, &-c.” 231 
on this rock, we anticipate, that nothing will be ealled gray 
wacke, that does not lie between this rock and the transi- 
tion argillite. We shall rejoice if it ean be confined within 
these limits: for we really believe, that scarcely a seconda- 
ry, or transition rook can be named, which has not, at one 
time, or another, been denominated gray wacke: and, in- 
deed, the usual definition of that rock will comprehend 
them about all, without difficulty. In regard to the primi- 
tive rocks, to be described in the second part of Conybeare 
and Phillips’ work, we do not expect so much will be pre- 
sented, that is new and interesting, as in the part of the 
work, whose analysis we have now given. 
It remains, in this place, to notice the geological map of 
England and Wales, and the Sections, that accompany t 
wor 
coveries have rendered necessary. The tablets appended 
Diluvial Beds, 2 Upper Marine, 3. Fresh Water 
or four patches of ee 
* Ifwe mistake these patches are nore an tract along bid 
Comprise the Fens of Réumeteshing: Ely and dhe ‘ bese deo 
E. coast of Lincolnshire, otbers on either side of the e ot only left 
ted tracts along the coastof Lancashire. These districts = not only 
'Ncoloured, but haded lik b 
in common maps. (Ep. 
£ 
