( uO 
a|fv the Fallat much more like fait- peter, than Common 
fak j hut was alfo very fufible, an d i n fl aramabl e , though 
produced of two un inflammable bodies : and the fame fub- 
ftance* confiding of Add falts 4 by a certain way of the Au- 
thor, produced a Fixt fait. 
6. Ode 6 f Vitriol pound upon a Solution of Bay* fait: whence 
was abftrabted’a liquor, that by the fraell and Tafte ap- 
peared to be a iprr.it of fait, In which operation 5 the mixture, . 
by working a great change of Texture, did fo alter the na- 
ture of the compounding Bodies, that the fea-falt,though a 
confiderably fixt Body, was diddl’d over in a moderate 
Fire of fand, whilft the Oyl of Vitriol, though no fiich 
grofs fait, was by the fame operation fo fixt, as to flay be- 
hind ; Befides that the fame, by a competent heat yeilded 
a fubftance, though not infipid, yet not at all of the tafte 
of Sea- fait, or of any other pungent one, .much Iefs having 
the highly corrofive acidity of oyl of Vitriol, 
7 . A diffofvent , made by pouring a fir eng fpirit of Nitre on 
the reUified Oyl of the Butter of Antimony y and then difilling off 
all the liquor , that would come over, &o. This Menflruum ( cal- 
led by the Author Peracutum') being, put to highly refined 
Gold, deftroyed its-'Texture, and produced, after the me- 
thod preferibed in the book, a true Silver 5 ,as its .whitenefs 
in colour, diflolublenes in Aqua forth^zud odious Bitternefs, 
did manifeft: which change of a Mettal, commonly efteemed 
to be abfolutely indeftruftible by Art, though it be far from 
being ’ ucriferous, is yet exceedingly JnfiruUive -, as is alfo 
the way, the Author here adds, ofWte^%Gold, by the 
powerofthe izmeDiffolvent. 
8, Aqua forth, concoaguhted with differing Bodies, produced 
very differing Concretes : And the fame Numeral Saline 
Corpufcles, that being aflbeiated with thofeof oneMettal, 
had already produced a Body eminent in one Tafte, did af*. 
ter- 
