T807 ) 
fc^, ifia! #as curioufly figur'd, being full of large flakes fliap'd 
almoft like the broad blades of Daggers, but neatly fringed ac 
the edges* But that which 1 chiefly^mention thcfe Figures for, 
is, that they feem to be as it were imboft, being both to the Eye 
and the Touch rais'd above the Horizontal plain or level of the 
other /^^. 
And here I muft not omit to take notice,that whereas in the 
recited Experiments the rugged furface was produ- 
ced at the Confines of two hetmge^eous and unroci^' Exp.xxiL 
ble Liquors , I have fonietimes obferved the like 
Phd^mmenoniVi one and the fame Liquor, and particularly, noc 
long fince looking in Frofty weather on a Viol where I had 
long kept OH of Vitriol, I perceived,that the Cold had redu- 
ced far the greateft part of the Men[lruum into a confiftent 
Mafs, whofe upper furface was very rugged and odly figured, 
though it lay covered all over with a pretty deal of high co- 
lourM Liquor, that was not frozen or coagulated , nor feem'd 
difpofed to be fo,at leaft in that degree of Cold, 
This brings into my mind , that not only Bodies, which in 
their Natural ftate (as 'tis wont to be call*d)are fluid ; 
but alfo fuah, as, by the violence of the fire, are Exp-XXiir. 
made to flow^may be conformable to fome naturally 
Fluid bodies in their fuperficial Figures. This may be ob- 
ferv'd in thebeft fort of what the Chymifts call Kegulm MArtk 
ft e Sat us, where the figure of a Star , ora figure fome what like 
that of the DecoCiion of Soot lately mentioned, will frequently 
appear imboft upon the upper fuperficies of the Regulm\ and 
fuch a* rais'd Figure i think J can yet (hew you, on a Mafs of 
Kf^«//;^ made of Amimonymihom Mm^ But if, tothofetwo 
bodies, Cijpf^^ be alfo skilfully added , the Superficies will be 
oftentimes adorned with new Figures according to Circum* 
ftaoces ; though the moft ufual I took notice of was that of a 
Net, that feem'd to cover the furface of the compounded Ei'- 
gulm. Butthis isnot foconftant, but that I have by me a Mafs 
of a Comal figure^ confiftingof two very contiguous, but eafily 
feparable,parts, whereof the lowermoft, which abounds more 
in Metal, hath its upper rurfacecover'd with round ^ri>/»^^r4»- 
in lhape and bignefs not unlike to fmall Peafe cut, in two ; 
and thefe are fo really imboft and elevated above the reft of the 
fuperficies^ that the other part of the Cone , which is of a more 
5N fcoriouf 
