Part III. Of ghdeuk 
yields from an Ounce of Silver to twenty Ounces. Some ^ 
hath been found to yield half Silver, (a) Moft of it holds &WsTra 
fome Gold ; the beft * th part in proportion to the 5/7- vails > p-? 1 - 
fi\ 1 1 0)lbid. 
ver. (b) p . 93 .j 
GROGUNNION ORE; alfo Black, and Granulated. It 
holds fifty lib. (fterling) per Tun. 
CUMBSIMLOCK ORE, Black, and moft of it Gra- 
nulated, immerfed in a blackifh Stone, difperfed throughout 
It holds twenty eight lib. fterling per Tun. This, and fome 
other Weljh Ores, given by Sir Rob. Moray. 
COGINNIAN ORE, holding fifteen lib. fterl.^rTun. 
It runs in Veins or Layers, rather Grained than Flaked, toge- 
ther with yellow Mundick, between two forts of Beds $ 
one of whitifh Clay, the other of brown Stone. 
A BLACK and FLAKED SILVER ORE , with fome 
pieces of the Lap 'vs Hematites growing to it. 
ANOTHER Piece FLAKED, from the Forreft of Cre, 
not far from St. Veit in Carinthia. With fome adhering 
Cinnabar of a brown Purple. Given by Dr. Edward 
Brown. 
BLACK FLAKED S. Ore from Freyberge in Mifnia. Here 
are two pieces : one fimple 3 the other, mixed with white 
Ore and Cinnabar . 
TheSCORIUM of the FREYBERGICK S.Ore. Porous, 
of a blackifh gloffy colour, and brittle: qu. Vitrum Ar- 
genti. 
B. FLAKED S. Ore from Kottenberge. 
B. FLAKED S. Ore from Cummuftwith Rock, It runs in 
Veins, through a blewiflh Grey Stone,togcthcic with a white, 
hard, and granulated Spar. Tis alfo immerfed in Grain, 
in the Grey Stone. Both the Stones are fo hard as to cut 
Glafs. 
CUMSUMLOCK ORE , holding twenty li. fterl. per 
Tun. 3 Tis much like to that of C?immuftwitb. 
ANOTHER like Ore from CORNWALL. Given, with 
feveral others, by Sam. Coleprefs Efq$. It grows together 
with Mundick. and green and yellow Spar. 
Black and fmall FLAKED S. Ore, from the fame place, 
'Tis immerfed in a Slate, with yellow Mundick; 
A Piece of Bl. FLAKED S. Ore growing to a very 
hard Spar, white within, and redifh without, and in- 
cruftated 
