182 
MINES, METALS, AND GEMS. 
— .utbs*' 
dance of copper, much purer 
tEhich they procured from the ore iteeir by sro 
On the island of Anglesea, near Dula° 
north coast, is Parts Mountain, which 
flO 
most considerable quantity of copper ore 
knoAvn. The external aspect of the lull is fje '' ^ 
... . « . ■- .......l-n /^T ' : 
kn0\vll. xilc cxieilidi WA vAiv^ • 
and it is surrounded by enormous rocks . 
ax'" f 
quartz. The ore is lodged in a basin, or hollo 
on one side a small la.ke, over the w^ter-s " ^ 
over those of Avernus, fatal to the featherea 
are never known to pass. The 
tUC llCVCl IVntJVEAA - 
rations has been, that the whole of this tract v 
Suffocating fumes d ,i 
a most savage appearance. o , 
ing heaps of copper arise in all parts, an 
baneful influence for miles around. ^ 
worked in a very remote period, appears tr?" , rf'; 
the ancient operations, which were carried i- 
by heating the rocks intensely, when w. 
and 
CUlU I.JJ A4V..CJ L» Lijj J « fl’ 
denly poured on them, so as to cause them^^ ^^j,| 
scale. ' In the year 176s, after a long 
so little profitable that it was on tho crc 
so luuc uiluiuiui.. .. — — - . ,,n(| ; 
doned, a large body of copper 
doned, a large Doay or copper uic , ...ge 
has ever since been worked to great T® 'hO''J 
UllVCkl g^iv.01. - pv I 
mising a "vast supply. The water lodged in ^ / 
the bed of ore, being strongly impregnated w 
• 1 /llet-rtVMi tpH in nits. whcr6 ^U(> iv 
rfbc -e 
^ 111'* 
A 
is drawn up, and distributed in pits, where 
cess is employed as in the Wicklow m’"®' 30' 
t-hus procured differs little from native coppe 
highly prized. , ^ gtc ^ t 
In the Parys mine eight tons of gunpow i,ey 
expended in blasting the rock. Nature i - . 
• ’ 'eatb 
.feetbcnS' y 
thn:® t'M 
profltse in bestowing°her mineral fiivours ; '‘^”,1, t*|/, 
copper ore, and not more than two 
is a bed of yellowish greasy clay, from , 
feet in thickness, containing lead ore, from • 
metal upwards of fifty ounces of silver ar j^ai jC 
tallied. These works have added greatly 'O . ; 
.. . A _t ar«-»nlnVI*^ /Urtll • lD‘ 
01 UlC - A thf?U 11 
fifteen hundred persons, who, with la jill 
supposed to amount to eight thousand son 
J 
deriving subsistence from the mines. 
, living 
The copper mines of Cornwall are 
verf 
llO"' 
