3 3 o Of Tin, Lead, and Iron. Part lit 
v . — , — , — 
colour of a Calcedony. Ferrant. Imperato hath one which 
lie entitles hgemmamento di Piombo-^ andfeems to be like 
this. 
SPARKS of LEAD ORE in the Caulk One of the 
Sparks is branched almoft like a fmall Leafe. The Stone or 
Caulk, is a Congeries of white Cryftals of Spar laid crofs 
every way. They will cut Glafs. 
A large piece of LEAD ORE, flaky, and lying in fpots 
in a white perfpicuous, flaked, and foft Spar. 
Some other pieces of Lead Ore, Englijh. 
LEAD ORE, from Freiungen, called WEISS ER FLIES. 
It confifteth of a foft and friable Spar, of a pale colour, near 
that of the Diaphanous natural Sulphury together with a 
rediih fubftance inter mixt. 
LEAD ORE, from the fame place, called Schlich. 'Tis 
a fine grey Sand, like that ufed for Writings : with fome 
few black Grains 5 which is, I fuppofe, the true Ore. 
A large piece of LITHARGE ( of Silver.) 
See a large and accurate Account of the Mendip Lead 
u) Num.28. Mines in the Phil. Tranfattions^ (a) communicated by 
* j9 ' Dr. J of. Glanvile. 
Lead (befides the ufes commonly known ) is alfo em- 
ployed for the Refining of Gold and Silver by the Cupel. 
Hereof is made common Cerufs with Vinegar. The way 
(b) Lib. de briefly, yet perfpicuoufly fet down by Theopbraftus. (b) Of 
Cerufs, Red Lead. Of Plumbum uftum, the beft yellow Ochre. 
Of Lead and * as much Tin, Solder for Lead. Hereof are 
alfo made the like Chymical Preparations, as of other Me- 
tals, as the Oil, Tinfture, Salt, isre. Some of which, many 
bold Chymifts, without Difcretion, give inwardly, and alfo 
extol them. But thofe that are careful of their Health, will 
beware of them. I do not deny, but that 'tis porlible this 
Metal, as well as Mercury, may be fo order d and given, 
as to be innoxious. 
BRUSH-IRON, Native or from the Mine. It confifteth 
of ftrait, round, long Styria, about the thicknefs of a fmall 
Kniting-Pin, bolt upright, like the Briftles of a ftiff Brujh, 
or the Teeth of a Wooll-Comb. They grow on a double-Bed, 
the uppermost of an Iron-colour, the undermofl: of a dark 
yellowiih red. 
BRUSH ORE; YromDowardm Here for djlire. Given 
by 
