Mr. Farey’s Reply io Mr. Bakewell. 107 
eashire, and Cheshire; but after all I suspect, that he al- 
Juded to those Faults which I bave hinted at in Rep. 173, as 
being beyond the limits of my Derbyshire Survey, and there- 
fore [ had not attempted to trace them: and I am well con- 
tent, to leave Mr. B. in the enjoyment of his opinion, that 
no connection between such Faults can be traced, ** over 
a considerable tract of country,” unt} those more inter- 
ested than either of us, shall see it right toemploy some one, 
who has studied the demonstrable principles of fractured, 
dislocated and denudated stratified masses, and carefully 
observed the practical and perfectly corresponding effects of 
Faults, on Coal-Pits, Mines, Quarries, &c. as | bave done, 
during several years, and have disinterestedly laid the re- 
sults of my investigation and experience before the public, 
in the Derby Report i. p. 117, &c.* 
Any one who shall have followed me in these studies 
and observations, would be unlikely to imagine, as Mr. 
B. appears to do at pages 2i2 and 213, that Faults which 
greatly derange the strata, could be accompanied by const- 
derable tilts of the strata, either towards or from the Fault 
but would know both theoretically and practically, that the 
greatest Faults, as to rise or derangement, are least visible, 
by ¢zlts of the strata, except such as are rapidly increasing, 
when the tilts will be seen along or parallel to the line of 
Fault, instead of across it. 
Such observers would also know, practically, that what I 
have mentioned, Rep. i. 123 and 124, as to Faults not 
showing themselves by inequalities on the surface, except 
in some rare instances, is perfectly correct ; and as indeed 
Mr. B. has tacitly admitted (as several others have done 
before him) in his 2d Plate, fig. 2, 3 and 4, where faults 
are represented deranging the strata beneath, but without a 
corresponding step or cliff appearing on the surface!, and 
yet, his Book may be searched through, without this extra- 
ordinary fact being further adverted to, or recorded, amon 
either the explained or the unexphined phenomena ot 
* In somelearned Lectures lately read before the Geological Society, (while 
my Papers and Maps mentioned in a former Note, were inits possession), 
on the principles and circumstances attending Stratification, | have heard. 
that these investigations were not once alluded to, or any notice taken of 
Mr, Smith’s labours | believe, among a very numerous list of quotations, ex 
pressing doubts and difficulties, principally, as to the laws relating to stratifica- 
tion, which many believe and others know, that Mr. Smith and myself, 
Mr. Elias Hall and others have established, and brought into practical use: 
and that an inquiry being afterwards made of the Lecturer, how these 
omissions happened, he replied, that Mr. F’s investigations appeared to him 
unintelligible, and therefore unfit to be referred to in an elementary’ course 
on stratification. 
, ; the 
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