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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.

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Table of Contents

The Sixth Part.

compound all others. Nor do I see why we may not conceive that she may produce the Bodies accounted mixt out of one another by Variously altering and contriving their minute parts, without resolving the matter into any such simple or Homogeneous substances as are pretended. Neither, to dispatch, do I see why it should be counted absur’d to think, that when a Body is resolv’d by the Fire into its suppos’d simple Ingredients, those substances are not true and proper Elements, but rather were, as it were, Accidentally produc’d by the fire, which by Dissipating a Body into minute Parts does, if those parts be shut up in Close Vessels, for the most part necessarily bring them to Associate Themselves after another manner than before, and so bring Them into Bodies of such Different Consistences as the Former Texture of the Body, and Concurrent Circumstances make such disbanded particles apt to Constitute; as experience shews us (and I have both noted it, and prov’d it already) that as there are some Concretes whose parts when dissipated by fire are fitted to be put into such Schemes of matter as we call Oyle, and Salt, and Spirit; So there are others, such as are especially the greatest part of Minerals, whose Corpuscles being of another Size or figure, or perhaps contriv’d another Way, will not in the Fire yield Bodies of the like Consistences, but rather others of differing Textures; Not to mention, that from Gold and some other Bodies, we see not that the Fire separates any Distinct Substances at all; nor That even those Similar Parts of Bodies which the Chymists Obtain by the Fire, are the Elements whose names they bear, but Compound Bodies, upon which, for their resemblance to them in consistence, or some other obvious Quality, Chymists have been pleas’d to bestow such Appellations.

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