point tliPi , OF dbreysture. 63 
length doe? S 'loscends^ the passage Contracts, and 
torrent of the ^"ffioient room for the 
subterraneous channer'rf'^ ' continues to flow through a 
provedbytlresma ^ i" c=^tcnt, as is 
from the distant mines ofuSSk 'f ° 'r 
near]/ * °4d ^ 
I’cak mountain, about 620 feet & 
<luced by the exnlosinn curious effect is pro- 
per, wedged into the rock in gunpow- 
for the sound appears tn r i/ mtenor ot the cavern ; 
a tremendous and^conVm a “ “'® ''°°f sides, like 
° fr'c light, on retumlrtn^f: "" effect 
cularly impressive: and recesses, is par- 
rocks which become brio-htc- gradual illumination of the 
ts ,said to exhibit one of“tl, pntrance is approached, 
ever employed the pencil, w interesting scenes that 
tion of a spectator. artist, or It.xed tlie adinira- 
tou. 
Tor Or tfi » q 
Cipicc facing the Mountain, is a huge pre- 
pecuUar kind of slate wMcl^' composed of a 
” f^P°5cdto the air ’ve„ ^ very hard before it 
y Hence it is per^!/ ^ 11 '^'“™^'®® 1° ®u such 
Stone t' '5’°"' i 'vhile .wasted by the action of 
f om tl^"’^ “ and larger masses of 
5cc?.- u P“‘^‘cns. and this till necessarily fall 
occasionally so loud .as to be hetd “.^"“^niig noise which is 
thev'\° valley beneath ^ distance 
^c.r tragments to the extent of 5 1 ‘'.°'^®'-whelmed with 
o^he precipice, they prXe 'In many parts 
jceneiy, higllV daXlous'tS ^ ^ 
y most intelligent of xh^ .^PP^^^ched. It is affirmed 
anH ‘"“"'‘'lain chiefly waste, j"®‘.f^’^°F;ngInhabitants, that 
^nd r,ain ; and Mr^Marth violent storms of snow 
thaT!.^ °‘'’ ‘"lliel’hilosonldrll m Pchhshed an account of 
h-nt the decay i, ,inf ^“ ^^'^“’^®^ctions for 1729, affirms 
’“''•eyed it closely same. He not 
but ascended the steepest part of thi 
