362 Mr. Farey’s Notes on Mr. Bakewell’s Geology. 
P, 123. Coal-field, mentioned by Mr. B. pp. 267, 285, and 
290: but at page 134 and 155, he rejects the 
<¢ fleetz trap formation,” as a useless distinction. 
124, 1.9, towards a centre*.—* See Will. Min. eh 
ad Edit. ii. 288; the dips of the Clee-hill Coal- 
field, are probably pretty uniform towards the 
middle of the Trough (see Plymley’s Report, p. 61, 
and your xxist vol. p. 365). See other notes ap- 
plicable to this page, on page 98. : 
125, 1.10, Cockfield fell*.—* See this grand English 
Whin-dyke mentioned, in my second Note on page 
108. 
1. 15, into sont +.—t Observations and descriptions, less 
tinctured with theory, than here and p. 124, 209, 
&c. would, I believe, present a different view of 
the case. In South Wales, whole strata, where 
Basalt is not near, seeni to me, to be exactly like 
the *‘charred Coal,”’ found under Mr, Keir’s House, 
which he gave me specimens of, in 1808, when 
cursorily viewing the Dudley Coal-field (see 
p- 148), and nearly similar to the ‘* Culm” of 
Anglesea, see my Note on p. 108. 
Practical men, to their cost know, and often 
meet with, defective or altered parts of their Coal- 
seams; sometimes where faults (whatever filled 
with), may be supposed to occasion them, and 
often, where no visible cause has been discovered, 
and particularly so, in the Coal- works, to which 
Mr. B. has particularly alluded in pages 18 and 
139, as the Maps of underground workings, in the 
possession of Edward Mammatt, Esq. might have 
shown to Mr. B. And after all, what stratum, 
when traced through a sufficient length of its 
course, and well explored, is found free from as 
great local anomalies, as those patches of ¢* sooty” 
or © charred” Coal exhibit ?. 
126, ]. 23 and 24, brass Jumps *.—* Rep. i. 218. 
130, 1. 13. !. Siliceous sandstone *. —* The different 
Red Marls in England, and their locally imbedded 
Gritstones, &c. (Rep. i. 146, Phil. Trans. 1811, 
and P.M. xxxix. p. 29, and xl. p. 50 and 53), seem 
to be included by Mr. B. in this * formation,”? 
of his System, see pages 134, 136, 174 Note, and 
267. The many important Clay and Sand strata 
of England, seem also forgot in this 5th class of 
his 
