CodalSearch this book — or all of Codal…⌘K
nydus/The Sceptical ChymistPublic

Robert Boyle presents a series of philosophical dialogues between the characters Carneades and Eleutherius. The text examines the author's reasons for questioning both Peripatetic and chemical doctrines regarding the material principles of mixed bodies.

Page 113 of 277
Table of Contents

The Second Part.

I know there may be a Distinction betwixt Matter Immanent, when the material Parts remain and retain their own Nature in the things materiated, as some of the Schoolmen speak, (in which sence Wood, Stones and Lime are the matter of a House,) and Transient, which in the materiated thing is so alter’d, as to receive a new Forme, without being capable of re-admitting again the Old. In which sence the Friends of this Distinction say, that Chyle is the matter of Blood, and Blood that of a Humane Body, of all whose Parts ’tis presum’d to be the Aliment. I know also that it may be said, that of material Principles, some are common to all mixt Bodies, as Aristotles four Elements, or the Chymists Tria Prima; others Peculiar, which belong to this or that sort of Bodies; as Butter and a kind of whey may be said to be the Proper Principles of Cream: and I deny not, but that these Distinctions may in some Cases be of Use; but partly by what I have said already, and partly by what I am to say, You may easily enough guess in what sence I admit them, and discerne that in such a sence they will either illustrate some of my Opinions, or at least will not overthrow any of them.

To prosecute then what I was saying before, I will add to this purpose, That since the Major part of Chymists Credit, what those they call Philosophers affirme of their Stone, I may represent to them, that though when Common Gold and Lead are mingled Together, the Lead may be sever’d almost un-alter’d from the Gold; yet if instead of Gold a Tantillum of the Red Elixir be mingled with the Saturn, their Union will be so indissoluble in the perfect Gold that will be produc’d by it, that there is no known, nor perhaps no possible way of separating the diffus’d Elixir from the fixed Lead, but they both Constitute a most permanent Body, wherein the Saturne seems to have quite lost its Properties that made it be call’d Lead, and to have been rather transmuted by the Elixir, then barely associated to it. So that it seems not alwayes necessary, that the Bodies that are put together per minima, should each retain its own Nature; So as when the Mass it Self is dissipated by the Fire, to be more dispos’d to re-appear in its Pristine Forme, then in any new one, which by a

113