C 501 ] 
Crone -Bawn is an hill of two miles in circumfe- 
rence, and, as near as I can guefs, about 1000 feet 
in height, fwelling regularly in the form of a large 
inverted bowl. The bowels of this hill are, on all 
tides, full of rich mines, as appears by the {hafts, 
which have been funk in different parts of it. But 
the principal works lie on the eaft fide, about half 
way up the hill. Here I faw feveral {hafts, funk 
from 50 to 70 fathoms deep, as the directors of the 
works informed me. In finking thefe {hafts, the firft 
mineral met with is an iron done. Beneath this, 
they arrive at a lead ore, which leems mix’d with 
clay, yet yields a large quantity of lead, and fome 
filver. Under this lies a rich rocky filver ore, which 
iparkles brightly, and yields feventy-five ounces of 
pure filver out of a ton of ore, befide a great quan- 
tity of fine lead. 
Having pierced fome fathoms thro’ this, they ar- 
rive at the copper ore ; which is very rich, and may 
be purfued to a vaft depth. 
There are five hundred men employed in thefe 
’ mines ; and having inquired from feveral of them, 
how they could live in thefe caverns ? they faid, 
that they had their health very well ; and that there 
was a particular quality in the copper-water to cure, 
immediately, all fores in their {kin or fle£h. Their 
pay is eight pence a day. 
In order to carry off the water from the mines, 
there are levels carried on a great way under-ground, 
from the lower part of the hill. Out of thefe levels 
ifiiie larged reams of water, molt drongly impregnated 
with copper. 
An accidental difcovery, which happen’d not long 
ago, is like to make thefe dreams more beneficial 
than 
