rekindled and burn a pretty while, not only after the second, but after the third or fourth accension. You, to whom I think I shewed my way of discovering something of Sulphureous in Oyl of Vitriol, may perchance suspect, Eleutherius, either that this Substance was some Venereal Sulphur that lay hid in that Liquor, and was by this operation only reduc’d into a manifest Body; or else that it was a compound of the unctuous parts of the Antimony, and the Saline ones of the Vitriol, in regard that (as GuntherLib. 1. Observat. Cap. 6. informs us ) divers learned men would have Sulphur to be nothing but a mixture made in the Bowels of the Earth of Vitriolate Spirits and a certain combustible Substance. But the Quantity of Sulphur we obtain’d by Digestion was much too great to have been latent in the Oyl of Vitriol. And that Vitriolate Spirits are not necessary to the Construction of such a Sulphur as ours, I could easily manifest, if I would acquaint you with the several wayes by which I have obtain’d, though not in such plenty, a Sulphur of Antimony, colour’d and combustible like common Brimstone. And though I am not now minded
