Mr. Farey’s Notes on Mr. Bakewell’s Geology. 187 
{P.218]ingly invented, to account for their suspension in the veire 
without touching the skirts or Rock: on all these Mr. B. 
is silent. In my Rep.i. 248, I have, I think, clearly shown, 
that Riders do not belong to the adjacent Rock, or to any 
_ other, but were formed where they are, by a rudely and 
2 
confused crystallization, since the matler of the vein, in 
Tick-holes or Druses, that were previously empty. 
- 1, 5, another vein +.—+ A Fault-vein, or Vein intersected 
longitudinally by a fault, Rep. i. 249, 245 Note, &c. 
220, 1. 19, its two extremities* —* Tideslow-Rake, see Rep. 
i. 268 ;—which account of mine, needs correction, in con- 
sequence of Mr. Elias Hall’s subsequent investigations 
(mentioned in my 2d Letter, vol. xli. p. 113,) by adding, 
Peak-Forest, Small-dale and Dove-hole, to the names of 
Liberties through, or near which it ranges, according to 
Mr. Hall’s Model, now before me; and adding, 5rd and 4th 
Limestone, to the Rocks which it intersects. The great 
Limestone Fault crosses it (and perhaps terminates its works 
to the W), N or NW of Dove-hole, and a branch therefrom, 
crosses and breaks its vein-stuff, in High or Hills Rake, near 
Windmill-houses. 
This Vein, crossing the entire series and limestone di- 
strict, and passing unusually far under the shale to the E, is 
perhaps the most extraordinary in Derbyshire : and respect- 
ing which, I sineerely regret, from mistaken information, as 
well as observation, to have yery improperly expressed my- 
self, at the top of page 275 of my Report. 
221, 1. 23, the year 1803 or 1804 *,—* These dates (see also. 
p- 210), as to when carbonate of Lead or /Vhite Ore (Rep. 
i. 355) first became known to the miners of Derbyshire, are 
somewhat incorrect; since Mr. John Mawe, in his “* Mine- 
ralogy of Derbyshire,” published in 1802, says, that it had 
been then known by them, a “ few years,” p. 106 and 370, 
223, 1. 1 and 2, vegetable fibres, apparently roots*.—* I wish 
that Mr. B. had informed us, of the particular Colliery and 
situation of the fault-stuff, in which he made this curious 
observation. In the clunch or fire-clay floors of the Coal- 
seams, (see my Note on page 161) in Castlecomer and 
Feroda Collicries in Kilkenny in Ireland, fibres, like roots, are 
said to be commonly found, see Mr. William Tighe’s “ sta- 
tistical observations on Kilkenny,” p. 56, &c, 
When examining the Quarries of blue Lias Limestone at 
Barrow-on-Soar, in August 1807, the workmen had just 
uncovered a considerable area, of what they called the Rum- 
mel floor, a useless bed of blue slaty Limestone, 10 inches 
thick, 
