124 Mr. Bakewell’s Reply to Mr. Farey 
My. Farey in his last Jetter bas favoured the public with 
his travels by night and by day, and bas informed us where 
he was well entertained; and where he was involved in ‘‘a dis- 
mal thick fog,” with other subjects of equal interest.. Mr. 
F. seems however to have returned from Ins journey out of 
temper with the Scotch Gevlogists, with the Geological 
Society, and with me. This is the more to be regretted, as 
the mode of travelling which Mr. Farey says he prefers, is 
more likely to improve the temper and appetite, than, to 
add to our geological knowledge. The examination of a 
country from the “top ” or the ** window of a stage» 
coach,” is much more suited to mislead the judgement 
than. to convey accurate information ; for the colour of 
rocks, which is almost all that can be seen in this mode of 
examining nature, is the most fallacious of all characters, 
The same rock often presents every variety of tint by ex- 
posure to the atmosphere, and will be red or yellow in pro- 
portion to the oxidation of the iron it contains. I con- 
fess I do not set a high value on this kind of ¢ stage coach 
geology :’ it may account, however, for some extraordinary 
descriptions which have of late years been given to the 
public, about yellow limestone, red marle, &c. 
Mr. Farey persists in objecting to the identity of the lime- 
stone of Craven in Yorkshire, with that of the High Peak in 
Derbyshire*, though I believe he has never seen the former 
except at a distance: but their identity has not been, and I 
am inclined to think cannot be, denied by those who have 
examined both. Their geological relations on the eastern 
side are precisely the same; they are both covered with si- 
milar strata, and present the same external characters. The 
limestone which Mr. Farey saw in another district near 
Kendal, alternating with graywacke or coarse slate, cannot 
prove or disprove the question ; and I may still repeat that 
Mr. Farey bas no reason to advance to disprove their 
identity, but his ‘¢ imaginary great fault,” of which I think 
he will find it difficult to offer any direct proof. 
In the observations which Mr. Farey has been pleased 
to make on the Geological Map of England in my Introduc- 
tion to Geology, be seems to forget, what I have expressly 
stated, “ that | propose only to trace an outline of the Geo- 
logy of England, and the leading features. of its physical 
structure and mineral geography, I wish the description, 
* Mr, Farey seems compelled reluctantly to admit that the upper lime- 
stone strata may be the same in Craven and in Derbyshire; “I rather be- 
lieve the top does rise from under shale-grit and mill-stone grit,”—which is 
all I contend for, 
and 
