The Sixth Part.

its Nature and Texture, and remains a Vitriolate and Compounded Body. But if the same Vitriol be exposed to a strong Fire, it will then be divided not only, as before, into smaller parts, but into Heterogeneous Substances, each of the Vitriolate Corpuscles that remain’d entire in the water, being it self upon the Destruction of its former Texture dissipated or divided into new Particles of differing Qualities. But Instances more fitly applicable to this purpose, I have already given you. Wherefore to return to what I told you about the Destruction of Gold, that Experiment Invites me to Represent to you, that Though there were either Saline, or Sulphureous, or Terrestrial Portions of Matter, whose parts were so small, so firmly united together, or of a figure so fit to make them cohere to one another, (as we see that in quicksilver broken into little Globes, the Parts brought to touch one another do immediately re-imbody) that neither the Fire, nor the usual Agents employ’d by Chymists, are pierceing enough to divide their Parts, so as to destroy the Texture of the single Corpuscles; yet it would not necessarily follow, That such Permanent Bodies were Elementary, since tis possible there may be Agents found in Nature, some of whose parts may be of such a Size and Figure as to take better Hold of some parts of these seemingly Elementary Corpuscles than these parts do of the rest, and Consequently may carry away such parts with them, and so dissolve the Texture of the Corpuscle by pulling its parts asunder. And if it be said, that at least we may this way discover the Elementary Ingredients of Things, by observing into what Substances these Corpuscles that were reputed pure are divided; I answer, that it is not necessary that such a Discovery should be practicable. For if the Particles of the Dissolvent do take such firme hold of those of the Dissolved Body, they must constitute together new Bodies, as well as Destroy the Old; and the strickt Union, which according to this Hypothesis may well be suppos’d betwixt the Parts of the Emergent Body, will make it as Little to be Expected that they should be pull’d asunder, but by little Parts of matter, that to Divide them Associate Themselves and stick extreamly close to those of them which they sever