28 Mr. Farey’s Notes on Mr. Bakewell’s Geology. 
P.154,1. 11, unfit to make iron *.—* The second unsuc- 
cessful attempt with the Earl of Moira’s Iron Furnace, 
on Ashby Wolds (Rep. i. 401), is here I suppose alluded 
to :-—to me it seemed, when there on my Derbyshire 
Survey, that the quantity of tron-stone that could be 
readily got, was quite inadequate for the supply of the 
furnace erected. Earl Stanhope’s furnace at Dale 
Abbey (Rep. 1. 397) is said to have failed, owing to 
the quality of the Coals in its vicinity, although the 
ironstone was in plenty, and of good quality. 
Noblemen and gentlemen will in time find out, that 
they had much better take the advice of experienced pro- 
fessional Men, in the Letting of their Minerals on pro- 
per terms, than attempt dhe working of them on their 
own account; or, than take the first offer of any rash 
or inexperienced adventurers, who may apply. 
157, 1. 21 and 22, an alluvial production *.—* This is 
certainly the case with a large proportion of our Wood 
Coal, near the surface, as that of Bovey (p. 158) men- 
tioned in a Note in my first Letter, p. 57. Butit seems 
no less certain, that some irregular Coal-seams, having 
the characters of Wood Coal, are lodged between re- 
gular strata, that in particular, above the Doggers and 
alum Shale near Whitby in Yorks. mentioned page 
#67; which was working at Napehow in 1811, and 
had formerly been wrought at Newton-house, Rudscar, 
&c., P. M. xxxix. p. 101. The very irregular strata 
of wood Coal, above the Pipe Clay, in the Isle (as it is 
improperly called) of Purbeck, that are I believe alluded 
to P. M. xlii. p. 396, Ihave not seen; but from the 
description by my oldest Son and others, who have 
seem them, I conclude them to belong to the alluvium, 
161, 1. 22, after each inundation*.—* If the plants which : 
gave rise to Coal, were all subaqueous, or adapted to 
the hottom of a deep and quiet Ocean, instead of dry 
land (as I suggested in the articles Coal and Colliery 
in Dr. Rees’s Cyclopzedia), to which I know no op- 
posing facts, but many coroborative ones (Mont. Mag. 
XXXlll. p. 514 and 515), all the difficulties, of Mr. B’s 
almost infinitely repeated, alternations of dry Land and 
Water, would be avoided. 
Mr. B. has no where noticed the important Geolo- 
gical fact, which I have generalised, I think (and was 
also the first writer who mentioned it, I believe) of the 
Jioors of Coal-seams, being all of one nature, viz. in- 
fusible 
