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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.

to Employ Them) since they Evince that the Commonly reputed Principles or Ingredients of Things are not Permanent and indestructible, since they may be further reduc’d into Insipid Phlegme differing from them all; Yet till we can be allow’d to examine this Liquor, I think it not unreasonable to doubt whether it be not something else then meer Water. For I find not any other reason given by Helmont of his Pronouncing it so, then that it is insipid. Now Sapour being an Accident or an Affection of matter that relates to our Tongue, Palate, and other Organs of Tast, it may very possibly be, that the small Parts of a Body may be of such a Size and Shape, as either by their extream Littleness, or by their slenderness, or by their Figure, to be unable to pierce into and make a perceptible Impression upon the Nerves or Membranous parts of the Organs of Tast, and what may be fit to work otherwise upon divers other Bodies than meer Water can, and consequently to Disclose it self to be of a Nature farr enough from Elementary. In Silke dyed Red or of any other Colour, whilst many Contiguous Threads makes up a skein, the Colour of the Silke is conspicuous; but if only a very few of them be lookt upon, the Colour will appear much fainter then before. But if You take out one simple Thread, you shall not easily be able to discern any Colour at all; So subtile an Object having not the Force to make upon the Optick Nerve an Impression great enough to be taken Notice of. It is also observ’d, that the best sort of Oyl-Olive is almost tastless, and yet I need not tell you how exceedingly distant in Nature Oyle is from Water. The Liquor into which I told you, upon the Relation of Lully, and Eye-witness that Mercury might be Transmuted, has sometimes but a very Languid, if any Tast, and yet its Operations even upon some Mineral Bodies are very peculiar. Quicksilver it self also, though the Corpuscles it consists of be so very small as to get into the Pores of that Closest and compactest of Bodies, Gold, is yet (you know) altogether Tastless. And our Helmont several times tells us, that fair Water wherein a little Quantity f Quicksilver has lain for some time, though it acquire no certain Tast or other sensible Quality from the Quicksilver; Yet it has a power

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