C «;j ) 
Wore this performed that Promife, I hope your kind" 
neis will excufe, being I have been taken off by fomc 
neceffary occafions from making my Enquiries hitherto 
concerning it ; and understanding that it did not require 
any great haft, fo that I hope this following Account 
will not come too late. 
As to the finding out the Calamine, which I think the 
firft thing to inform you of, the Groovers tell me there is 
no certainty at all, but that it is a meer Lottery : They 
are neither certain of it from the Surface of the Earth, 
which, as they obferve, gives little or no figns thereof ; 
fometimes they fay an oily Steam and Smell anfech out 
of the Earth where they guefs fbme Mines to be, but 
not Calamine; nor from the Nature of the Ground, it 
being found fometimes in Meadows, fometimes in Ara- 
ble, lbmetimes in Pafture ; and as I have obferved, moft 
commonly in barren and rocky Ground : Neither from 
the Colour or Tafte of the Waters running thereabouts, 
they being much of the lame Colour, Tafte, Clearneft 
and Wholfomnefs with other Water : Nor from the wi- 
thering of the Grafs upon the Superficies of the Earth, 
or the Leaves of the Trees, they being as frefh where 
Calamine lies, as in any other place. But this I obferve, 
that they always dig for k upon, or near the Hills; for 
they exped none in thofe Grounds which have no Com- 
munication with Hills. 
The Method they take for finding out a Vein is by 
digging a Trench as deep as till they come to the Rocks 
where they exped: it lies, acrofs the place where they 
hope for a Courfe; which Trench they generally dig 
from North to South, or near upon that Point, tire 
Courfes ufually lying from Eaft to Weft, or zi Six a 
Clock, as their Term is. Though this is not confhnr 
neither,- for fometimes the Courfes, Seams or Rakes as 
they call them, lie at Nine a Clock, and fometimes are 
perpendicular, which they call the High time of the 
