( 68 ) 
Tranfinutation : Which, together with Teveral other Expc; 
riments and Obfervations, induce nie to embrace that lucky, 
or rather judicious,conjeaure of the defervedly admlredCir- 
Ujius^ that Su I phiir conjijls of Saline f articles inclofed infiore of 
branched Oleaginous matter \ and may be predominant in fome 
fubjlances , but is no where fure and feparat from the other prin- 
ciples\ fer then it would immediately vanijh into Air--^ being 
alwayes mixt with either Salt^ or Earthy and then it appears 
in a d^ry form 5 or with Water and Spirit , and then in a 
fluid. 
But to return whence we digrefled ; Nothing can more ful- 
ly demonftrate any Truth, than the confideration of the fol- 
lowing Experiment doth the j^ffinity^ I had almoft faid. Iden- 
tity of the Saline principle in Sulphur and Vitriol. Take thin 
platesof Copper, cement them carefully with common Brim- 
ftone^Jlratumfaper Jlratum (as Chymifts love to fpeak) repeat 
the operation four or five times with frefli fulphur; moft of 
the Copper will be converted into Vitriol, which diflTolved 
in water, and moll: of that evaporated, it yields very beau- 
tiful Azure cryftals. The fame may be effeded with /r(?^2. Or 
take the Acidity of Sulphur (corruptly called its OyOmoi- 
ft en therewith filings of Copper or Iron; then free them by 
Fire or Air from fuperfluous moifl:ure ; repeat this twice or 
thrice 5 and afterwards with common water you may extrad: 
a fair Vitriol, which by the Chymifts is called Vitriolum Mar- 
tis or Veneris^ according as the one or the other metal was im- 
ployed in order to its produftion | which fame metals being 
diflblv'd inany Acid menjlrua^ andcryftallized, are conver- 
ted into Vitriol. This is fignified unto us by the common name 
, of Vitriol, vulgarly fiyled Cuperofum^ quafi Cuprum erojum ; 
that being the metal wherewith *cis nfually affociared. Sulphur 
indeed is found mixt with moft metals and minerals , Gold 
and Silver not being excepted; the moft: expert Mineralifts in 
Teru accounting abundance of Sulphur an efpecial fign of rich 
See ch.19. of the fiyfl Ore: And amoHg the richcft Oreof the 
t:fn:l^f^-:o:::i i«ountainP<././*are fuch quantiriesof 
//0», tPtituninspamjhby Brimftoue, that the cavities and hollow 
AlonfoBarba .^^^r^.TZ.- j^^g prefently filled with flame, if 
a 
