And on this Occasion I remember, that having the last very Sharp Winter purposely try'd to Freeze, among other Liquors, some Beer moderately strong, in Glass Vessels, with Snow and Salt, I observ'd, that there came out of the Neck a certain thick Substance, which, it seems, was much better able then the rest of the Liquor (that I found turn'd into Ice) to resist a Frost, and which, by its Colour and consistence seem'd mafestly [Transcriber's Note: manifestly] enough to be Yiest, whereat, I confess, I somewhat marvail'd, because I did not either discerne by the Taste, or find by Enquiry, that the Beer was at all too New to be very fit to be Drank. I might confirm the Dutchmens Relation, by what happen'd a while since to a neere Friend of mine, who complained to me, that having Brew'd some Beer or Ale for his own drinking in _Holland_ (where he then dwelt) the Keenness of the late bitter Winter froze the Drink so as to reduce it into Ice, and a small Proportion of a very Strong and Spirituous Liquor. But I must not entertain you any longer concerning Cold, not onely because you may think I have but lost my way into a Theme which does not directly belong to my present Undertaking; but because I have already enlarg'd my self too much upon the first Consideration I propos'd, though it appears so much a Paradox, that it seem'd to Require that I should say much to keep it from being thought a meere Extravagance; yet since I Undertook but to make the common Assumption of our Chymists and _Aristotelians_ appear Questionable, I hope I have so Perform'd that Task, that I may now Proceed to my Following Considerations, and Insist lesse on them than I have done on the First. THE SCEPTICAL CHYMIST. _The Second Part._ The Second Consideration I Desire to have Notice Taken of, is This, That it is not so Sure, as Both Chymists and _Aristotelians_ are wont to Think it, that every Seemingly Similar or Distinct Substance that is Separated from a Body by the Help of the Fire, was Pre existent in it as a Principle or Element of it. That I may not make this Paradox a Greater then I needs must, I will First Briefly Explain what the Proposition means, before I proceed to Argue for it. And I suppose You will easily Believe That I do not mean that any thing is separable from a Body by Fire, that was not Materially pre-existent in it; for it Far Exceeds the power of Meerly Naturall Agents, and Consequently of the Fire, to produce anew, so Much as one Atome of Matter, which they can but Modifie and Alter, not Create; which is so Obvious a Truth, that almost all Sects of Philosophers have Deny'd the Power of producing Matter to Second Causes; and the _Epicureans_ and some Others have Done the Like, in Reference to their Gods themselves.