Mr. Farey’s Notes on Mr. Bakewell’s Geology. 2955 
P.46. stance, in its various States, is far more sins 
ular. 
47,!. 16 and 17, elevated them on one side *.—* The 
important Geological fact, that such elevations of 
piles of strata, by rents or faults, very rarely now 
form a cliff or sudden inequality of the surface 
(owing to the subsequent and general denudation 
thereof, Rep. i. 105, 123, and 124), has not been 
expressly pomted outin Mr. B’s volume, although 
soimportant a feature of the earth’s surface, see 
my 2d Letter, (p..107), and 3d Letter, (p. 165.) 
48, Plate II. fig. 1, see p. 48, 271 and 273.—fig. 2, see 
p- 145, 151, and 209.—fig. 3, see p. 146 and 209. 
—fig. 4, see p. 218.—fig. 5, see p. 296. 
48,1. 7, is built*—* On the gth Grit Rock, Rep. i. 
207, Ponds Colliery, whose workings undermine 
the Town and this Rock. ; 
1, 11 and 12, coarse gritstone -.—f Ist Grit, or Mill- 
stone Grit, Rep. 1. 220. 
1.17, stratified sandstonet.—+t Limestone Shale 
(Rep. i. 227):—throughout his work, nearly, Mr. 
B. has altered the established and appropriate 
name of this stratum, and of others also very dif- 
ferent from it, to * sandstone,” see my 2d Letter, 
(p. 103.) 
48, ]. 19, acap or covering **,—** On Whin Hill, Rep.i. 
62 and 227, are three caps or Hummocks of Ist 
Grit, the largest being here intended by Mr. B., 
-] suppose: and it is worthy of remark, that the 
great prevalence of this phenomenon, of Hum- 
mocks, throughout this district (Rep. 1. 225 and 
241) and others in England, Scotland and Ire- 
Jand, is unnoticed in Mr. B’s work; nor is their 
importance pointed out, as certain indications of 
the denudation of vast tracts of intervening strata, 
on Hills as well as in Valleys, see Denudation in 
Dr. Rees’s Cyclopedia, P. M. xxxiii. p. 204 and 
260, and xxxvil. p. 44, &c. The Rev. A. Cal- 
cott, in 1761, distinctly pointed out this grand 
phenomenon of the Earth’s surface, see his ‘* De- 
luge,” p. 159, &c.; Mr. Williams also mentioned 
a particular case of Hummocks, Min. King, ed 
Edit. i. p. 97. M. Hermelius’s Maps of Kin- 
necula and other Hills in Sweden, lately copied 
into Dr. Thomson’s Travels, show them, &c.— 
yet, who of the modern Theorists has noticed, and 
given 
