( 45 ) 
This Story Sir Moray affirmed to have received from the 
Earl of Weymes, Brother in Law to the Lord Sinclair, as it was 
written to him from Scotland. 
Of the Mineral of Liege yielding both Brim- 
ftone and Vitriol, and the way of extracting 
them out of it, ufed at Liege* ■ 
The Account of this mineral, and of the way of extracting 
both Brimflone ' and Vitriol out of it, was p ro cured from Liege, . 
by the lately mentioned Sir Robert Moray , and by him commu- 
nicated to the Royal Society , as folio ws. 
The Mineral, out of which Brimflone and Vitriol arc extracted, 
is one and the fame, not much unlike Lead-ore, having alfo 
oft times much Lead mingled with it, which is feparated from 
it by p : cking it out of the reft. The Mines refemble our Englifh 
Coal-Mines, dugg according to the depth of the Mineral , 5 5, ec, 
or more fathoms, as the Vein leads the Workmen , or the fub- 
terranean waters will give them leave, which in Summer fo o- 
yerftow the Mines, that the upper waters, by reafon of the 
drought, not fufficing- to make the Pumps goe, the Work, 
ceafes. 
To make Brimflone , they break the Stone or.Orc into fmalL . 
pieces, which they put into Crucibles made of Earth, five foot 
long, fquare and Pyramid wife. The Entry is near a foot fquare. 
Thefe Crucibles are laid fLoapingy eight undermoft, and (even 
above them, as it were betwixt them, that the Fire may come 
at them all, each having its particular Furmce or Oveir. The 
Brimflone being difTolved by the violence of the heat, drops out 
at- the fmall end of the Crucible, and falls into a Leaden- - 
Trough or Receptacle, common to all the Laid Crucibles, 
through which there runs a continual Ri volet of cold water, 
conveyed thither by Pipes for the cooling of the difTolved 
Sulphur, which is ordinarily four hours in melting. 1 his done, 
the Allies are drawn out with a crooked Iron, and being put 
mfb an Iron Wheel-barrow, are carried out of the Hint, and- 
being. 
