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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 Second Part.

One would suspect (sayes Eleutherius after his long silence) by what You have been discoursing, that You are not far from Helmonts Opinion about the Origination of Compound Bodies, and perhaps too dislike not the Arguments which he imployes to prove it.

What Helmontian Opinion, and what Arguments do you mean (askes Carneades.)

What You have been Newly Discoursing (replies Eleutherius) tells us, that You cannot but know that this bold and Acute Spagyrist scruples not to Assert that all mixt Bodies spring from one Element; and that Vegetables, Animals, Marchasites, Stones, Metalls, &c. are Materially but simple Water disguis’d into these Various Formes, by the plastick or Formative Virtue of their seeds. And as for his Reasons you may find divers of them scatter’d up and down his writings; the considerabl’st of which seem to be these three; The Ultimate Reduction of mixt Bodies into Insipid Water, the Vicissitude of the supposed Elements, and the production of perfectly mixt Bodies out of simple Water. And first he affirmes that the Sal circulatus Paracelsi, or his Liquor Alkahest, does adequately resolve Plants, Animals, and Mineralls into one Liquor or more, according to their several internall Disparities of Parts (without Caput Mortuum, or the Destruction of their seminal Virtues;) and that the Alkahest being abstracted from these Liquors in the same weight and Virtue wherewith it Dissolv’d them, the Liquors may by frequent Cohobations from chalke or some other idoneous matter, be Totally depriv’d of their seminal Endowments, and return at last to their first matter, Insipid Water; some other wayes he proposes here and there, to divest some particular Bodies of their borrow’d shapes, and make them remigrate to their first Simplicity. The second Topick whence Helmont drawes his Arguments, to prove Water to be the Material cause of Mixt Bodies, I told You was this, that the other suppos’d Elements may be transmuted into one another. But the Experiments by him here and there produc’d on this Occasion, are so uneasie to be made and to be judg’d of, that I

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