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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 Fifth Part.

perplexing darkness be more apt to puzzle then satisfy considering men, and will to them appear incumbred with no small Difficulties.

And from what has been hitherto deduc’d (continues Carneades) we may Learn, what to Judge of the common Practice of those Chymists, who because they have found that Diverse compound Bodies (for it will not hold in All) can be resolv’d into, or rather can be brought to afford two or three differing Substances more then the Soot and Ashes, whereinto the naked fire commonly divides them in our Chymnies, cry up their own Sect for the Invention of a New Philosophy, some of them, as Helmont, &c. styling themselves Philosophers by the Fire; and the most part not only ascribing, but as far as in them lies, engrossing to those of their Sect the Title of PHILOSOPHERS.

But alas, how narrow is this Philosophy, that reaches but to some of those compound Bodies, which we find but upon, or in the crust or outside of our terrestrial Globe, which is it self but a point in comparison of the vast extended Universe, of whose other and greater parts the Doctrine of the Tria Prima does not give us an Account! For what does it teach us, either of the Nature of the Sun, which Astronomers affirme to be eight-score and odd times bigger then the whole Earth? or of that of those numerous fixt Starrs, which, for ought we know, would very few, if any of them, appear inferiour in bulke and brightness to the Sun, if they were as neer us as He? What does the knowing that Salt, sulphur and Mercury, are the Principles of Mixt Bodies, informe us of the Nature of that vast, fluid, and Ætherial Substance, that seemes to make up the interstellar, and consequently much the greatest part of the World? for as for the opinion commonly ascrib’d to Paracelsus, as if he would have not only the four Peripatetick Elements, but even the Celestial parts of the Universe to consist of his three Principles, since the modern Chymists themselves have not thought so groundless a conceit worth their owning, I shall not think it Worth my confuting.

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