Rotten-Stone. 315 
from Mr. Whitehurst’s account. of the mode, 
in which Rotten-stone is procured, the appear- 
ances it exhibits as a mineral deposit, &c. 
and, as no late author that I am acquainted 
with has entered into any detail on these sub- 
jects, the following brief statement may not 
be unacceptable to those, who are interested in 
geological inquiries. 
1. The Rotten-stone, found on Bakewell” 
Moor, is deposited on a limestone, which seem- 
ingly belongsto the first or uppermost stratum i 
2, It occurs in different parts of the moor; 
frequently on the surface of the limestone, 
immediately under the vegetable mould; but 
is procured in the greatest quantity in a long, 
or somewhat trough-shaped hollow, intersected 
by several broad irregular fissures, which are 
filled up with small fragments of limestone— 
the gravel-like debris (rubble) of the traversed 
stratum.t 
3. In these fissures the Rotten-stone occurs 
at the depth of a few inches below the surface, 
and from that to ten or fifteen feet.{ 
A. It is procured in two distinct states.—In 
one, the Rotten-stone when dry has an indu- 
rated, and sometimes even a stony consist- 
* Vide Note A. 
+ Vide Note B. 
t Vide Note C. 
Rr2 
