Mr. Farey’s Reply to Mr. Bakewell. 115 
{in which state this Proteus-like substance often is found, 
Rep. i. 278) this my numerous notes on the sinkings in 
these Mines will show, and the circumstance had de- 
ceived Mr. H. in 1808, and until the time I am speaking 
of, as well as myself; but on descending into and ex- 
amining all the accessible parts of Dirtlow, and Wet-Rake 
Mines and others near, and closely questioning the old 
Miners as to the Mines now inaccessible (nearly all of 
which Mr. H. had himself visited repeatedly, to collect 
Specimens for sale in his Shop, years ago), this course of 
the great Fault, and the places of the different Limetones 
and Toadstones in the skirts of the veins through which 
it passed, and in every other, were found to agree perfectly. 
Mr. Hall’s Models intended for sale, were accordingly 
coloured to suit this arrangement, the main branch of Fault 
terminating, owing to its decrease, or at least ceasing to 
derange the bassets by its rise, in the 3d Lime, in Wet- 
Rake, SW of Casfleton. 
Since the receipt of Mr. H’s Models, I have well con- 
sidered nearly every part of them, and can say with confi- 
dence, that they convey much correct and new informa- 
tion, with respect to the ranges of all the principal Mineral. 
veins, in particular, wbich 1s not anywhere else to be met 
with. I have been careful to record all the corrections or 
additional facts of the Derbyshire Strata, Mines, &c. &c. 
which have reached me from Mr. Hall or any other source, 
and shall always be thankful for such, in case I can ever 
resume my proposed * Mineral History,” or that a new 
Edition of my Ist volume of Report should ever be called 
for, in which they might be noticed. 
I am exceeding sorry if I mistook what Mr. B. himself 
said to me, on the only occasion on which we have met, 
the 15th of May 1812, respecting the extent of his coinci- 
dence in opinion with Mr. Whitehurst, as to Lava in Der- 
byshire; | had heard or recollected no other statement of 
his on the subject, at the time of writing to you, or cer- 
tainly would have guided myself thereby, having no wish 
to misrepresent. 
IT must now add, that however little importance Mr. B. 
may have den attached to his volcanic notions, they ap- 
pear to me, to form now avery prominent feature in his 
work, and to be carried greatly beyond what the facts of 
the British Islands will warrant, as I intend to take other 
opportunities of showing. 
_ I come at length to Mr. B’s postscript, p.47. The 
rather ostentatious mention of my Lord Moira’s Survey here 
H 2 (on 
