dese 
X. Cursory Geological Observations lately made, in Shrop- 
shire, Wales, Lancashire, Scotland, Durham, York- 
shire NR., and Derbyshire. Some Observations on Mr. 
Bakewell’s Gevlogical Map, and on the supposed Identity 
of the Derbyshire Peak and the Craven Limestone Rocks, 
Sc. Be, By Mr. Joun Farey Sen, 
To Mr. Tilloch. 
Sir,— I HAVE for a long period been prevented from 
‘communicating to your’ useful work, although I have fre- 
quently in the interval been reminded by my friends, that’ 
a letter in your xith vclume, p. 45, required an answer. 
from me. 
Several weeks before this letter appeared, I left home, 
spent two or three days near Ludlow, in examining the 
Clee Hills to the E, and the two Limestone Rocks (besides. 
that under Clee Hills) which I found ranging on the west 
and north-west sides of that Town. From hence I pro- 
ceeded to Hafod, and spent several days in examining the 
strata and ranges of the Cum-ystwith and several others of 
the Mineral Veins of that curious district. I then pro- 
ceeded by Aberystwith, Shrewsbury, Liverpool, Kendal, and 
Carlisle, to Edinburgh, where I took a hasty view of Ar- 
thur’s Seat and a few other objects in the vicinity, and then 
proceeded for Perth, Aberdeen, Banff, Fochabers, Nairn, 
and Inverness, where I spent a day in examining the exca- 
vations for the eastern end of the Caledonian Canal, &c. and 
then went through Tain and Dornoch to Dunrobin Castle, in 
whose neighbourhood I spent several weeks, examining the 
strata thence into Caithness, and as far SW as Bonar Bridge, 
and particularly within the Coal-feld,which has been worked* 
since 1598, with some intervals, and was lately resumed 
(Phil. Mag. vol. xxxix. p. 337), on the banks of the Brora 
River, near its mouth. 
On my return, | came by sea to Banff, spent a day there, 
and examined the coarse slate on the shore near MacDuff 
and that Town, then again through Aberdeen and Bervie 
to Perth ; here I spent two days examining Kinnoul Hill, &c. 
* In Edinburgh, the hot-bed of Geological speculation and contention, 
a learned Doctor lately edited a 2d edition of the Jate Mr. John Williams's 
very valuable work on the “ Mineral Kingdom,” and has affixed a Life of 
the Author, wherein he has shown his ignorance of the fact, that Mr. 
Williams was for several years prior to 1770, the Lessee under the Earl of 
Sutherland, and worker of these Coal-pits (although in his work Mr, W, 
scarcely alludes thereto), and the Doctor strongly insinuates, jf not asserts, 
there are no Coals in Sutherland! 
D3 whose 
