260 
Mr. Farey’s Notes on Mr. Bakewell’s Geology. 
[P.272] measures become flat, and then dip slightly westward. 
had good reasons to think these representations correct, 
because after the Canal has descended many Locks to 
Wright’s Mill, near the junction of the three Counties of 
York, Lancaster, and Chester, the vale of the Tame is 
deeply excavated in the L. Shale, extending thence S for 
23 Miles, in which local denudation, I have mentioned, 
Rep. i. 236, that probably, the Ist Limestone is not far be- 
low the surface, in some parts. 
The flat-topped Ridge in the measures, or Strata- Ridge, 
(Rep. i. 172), seen in this Tunnel, appears to range south- 
eastward under Goodgrave Edge, Woodhead, and Blakelow 
Stone, (where I believe the Ist Grit to have a greater 
elevation, upon it, than any other spot of ground in Derby- 
shire, see Rep. i. 5 and 21, and Mr. B. p. 278, and my 
Note thereon,) and to have occasioned the several local 
denudations of L. Shale, from near Padfield N, to within a 
Mile of Yorkshire, up both the Eden and the Longden 
valleys, in the deepest excavations in which, I have also 
suggested the probability, of Ist Lime being near at hand, 
Rep. i. 236. 
I never before heard of the “* Dykes of Limestone,”’ men- 
tioned here by Mr. B. p. 272, and shall feel much obliged 
if he will mention more precisely, the places, the number, 
the directions, inclinations, thicknesses, and qualities of 
stone ?, in these Dykes, so uncommon in this part of our 
Island. 
1. 14, argillaceous Ironstone +. — + Rep. i. 232; in the 
draining of Mr. Joseph Gould’s Meadows at Pilsbury, near 
to the great Limestone Fault, and 4th Limestone Mountain, 
(Rep. i. 286, 232, and ii. 393, and vol. i. p. 232 Note), 
similarly ribbed spheroids, or lenses rather, were found, but 
composed of Shale Limestone, instead of Ironstone ; for- 
merly they would have been called gigantic Nuts, but I hope 
these follies have sufficiently had their day. 
My Friend Mr. Lawson, of the New Mint, lately men- 
tioned to me, that while the Tunnel under Stand-Edge 
near Saddleworth, was driving, he saw there, numerous 
lenticular round nodules, one side of them more convex 
than the other, and having numerous concentric raised lines 
upon their surfaces almost as regular as if turned in a lathe; 
, they were of various sizes, from 2 to 12 inches diameter, and 
he found them composed of calcareous Ironstone !. 
1. 24, intersect éhese beds t.—} Quere, see P. M. xxxix. 
p. 103 and 100. 
P, 2/3, 
