Enquiry, I will not only tell you, that I have several times with fair
Water wash'd from this _Calx_, good store of strongly tasted Corpuscles,
which by the abstraction of the _Menstruum_, I could reduce into Salt; but
I will also subjoyn an Experiment, which I devis'd, to shew among other
things, how much a real and permanent Colour may be as it were drawn forth
by a Liquor that has neither Colour, nor so much as Saline or other Active
parts, provided it can but bring the parts of the Body it imbibes to
convene into clusters dispos'd after the manner requisite to the exhibiting
of the emergent Colour. The Experiment was this.

[22] _Beguinus_, Tyr. Chy. Lib. 2º. Cap. 13º.

_EXPERIMENT XLIII._

We took good common Vitriol, and having beaten it to Powder, and put it
into a Crucible, we kept it melted in a gentle heat, till by the
Evaporation of some parts, and the shuffling of the rest, it had quite lost
its former Colour, what remain'd we took out, and found it to be a friable
_Calx_, of a dirty Gray. On this we pour'd fair Water, which it did not
Colour Green or Blew, but only seem'd to make a muddy mixture with it, then
stopping the Vial wherein the Ingredients were put, we let it stand in a
quiet place for some dayes, and after many hours the water having dissolv'd
a good part of the imperfectly calcin'd Body, the Vitriolate Corpuscles
swiming to and fro in the Liquor, had time by their opportune Occursions to
constitute many little Masses of Vitriol, which gave the water they
impregnated a fair Vitriolate Colour; and this Liquor being pour'd off, the
remaining dirty Powder did in process of time communicate the like Colour,
but not so deep, to a second parcel of cleer Water that we pour'd on it.
But this Experiment _Pyrophilus_ is, (to give you that hint by the way) of
too Luciferous a Nature to be fit to be fully prosecuted, now that I am in