Robert Boyle

“ And I think the Ancient Philosophers that Preceded Aristotle, and Chymists who have since receiv’d the same Opinion, do speak of this matter more intelligibly, if not more probably, then the Peripateticks : but though they speak Congruously enough, to their believing, that there are a certain Number of Primogeneal Bodies, by whose Concourse all those we call Mixts are Generated, and which in the Destruction of mixt Bodies do barely part company, and recede from one another, just such as they were when they came together ”

“ The Distillation of Eeles, though it yielded me some Oyle, and Spirit, and Volatile Salt, besides the Caput mortuum, yet were all these so disproportionate to the Phlegm that came from them ( and in which at first they boyl’d as in a Pot of Water ) that they seem’d to have bin nothing but coagulated Phlegm, which does likewise strangely abound in Vipers, though they are esteem’d very hot in Operation, and will in a Convenient Aire survive some dayes the loss of their Heads and Hearts, so vigorous is their Vivacity. ”

“ Since what I have now said may sufficiently evince, that the Fire may sometimes as well alter Bodies as divide them, and by it we may obtain from a Mixt Body what was not Pre-existent in it. And how are we sure that in no other Body what we call Phlegme is barely separated, not Produc’d by the Action of the Fire : Since so many other Mixt Bodies are of a much less Constant, and more alterable Nature, then Mercury, by many Tricks it is wont to put upon Chymists, and by the Experiments I told You of, about an hour 136since, Appears to be. ”

“ But if you dissolve Minium, which is but Lead Powder’d by the Fire, in good Spirit of Vinager, and Crystalize the Solution, you shall not only have a Saccharine Salt exceedingly differing from both its Ingredients ; but the Union of some Parts of the Menstruum with some of those of the Metal is so strict, that the Spirit of Vinager seems to be, as such, destroy’d, since the Saline Corpuscles have quite lost that acidity, upon whose Account the Liquor was call’d Spirit of Vinager ”

“ I tell not what Animals, Vegetables and Minerals, for that is reserv’d for another Occasion : but the Animals did Move of themselves, Eat, &c. — and by the true Anatomie I made of them, I found that they were compos’d of much Sulphur, little Mercury, and less Salt. — The Minerals began to grow and encrease by converting into their own Nature one part of the Earth thereunto dispos’d ; they were solid and 123heavy. And by this truly Demonstrative Science, namely Chymistry, I found that they were compos’d of much Salt, little Sulphur, and less Mercury. ”

“ And that which I would have you peculiarly Consider on this Occasion is, that not only in Chymicall Anatomies there is a Separation made of the Elementary Ingredients, but that some Mixt Bodies afford a very much greater Quantity of this or that Element or Principle than of another ; as we see, that Turpentine and Amber yield much more Oyl and Sulphur than they do Water, whereas Wine, which is confess’d to be a perfectly mixt Bodie, yields but a little Inflamable Spirit, or Sulphur, and not much more Earth ”

“ For if We consider what slight Qualities they are that serve to denominate one of the Tria Prima, We shall find that Nature do’s frequently enough work as great Alterations in divers parcells of matter : For to be readily dissoluble in water, is enough to make the body that is so, passe for a Salt. ”

“ Wherefore I will but name Two or Three other Arguments ; whereof the first shall be, 143that according to Aristotle himself, the motion of a mixt Body followes the Nature of the Predominant Element, as those wherein the Earth prevails, tend towards the Centre of heavy Bodies. And since many things make it Evident, that in divers Mixt Bodies the Elementary Qualities are as well Active, though not altogether so much so as in the Elements themselves, it seems not reasonable to deny the actual Existence of the Elements in those Bodies wherein they Operate. ”

“ 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 ”

“ Whereas the Fire do’s not act like any of the Seminal Principles, but destroyes them all, when they come within its Reach. But to this I shall need at present to make but this easy Answer, That whether it be a Seminal Principle, or any other which 164fashions that Matter after those various manners I have mentioned to You, yet ’tis Evident, that either by the Plastick principle Alone, or that and Heat Together, or by some Other cause capable to contex the matter, it is yet possible that the matter may be Anew contriv’d into such Bodies. ”

“ But yet in this Tryal, Eleutherius, it appears that though some of the Earth, or rather the dissoluble Salt harbour’d in it, were wasted, the main Body of the Plant consisted of Transmuted Water. And I might add, that a year after I caus’d the formerly mentioned Experiment, touching large Pompions, to be reiterated, with so good success, that if my memory does not much mis-inform me, it did not only much surpass any 110that I made before, but seem’d strangely to conclude what I am pleading for ”

“ But, to look back Now to that part of our Discourse, whence this Excursion concerning Mistion has so long diverted us, though we there Deduc’d, from the differing Substances obtained from a Plant nourished only with Water, and from some other things, that it was not necessary that nature should alwaies compound a Body at first of all such differing bodies as the fire could afterwards make it afford ”

“ And if it be objected, that unless the Hypothesis I oppose be admitted, in such Cases as I have proposed there would not be an Union but a Destruction of mingled Bodies, which seems all one as to say, that of such Bodies there is no mistion at all ; I answer, that though the Substances that are mingl’d remain, only their Accidents are Destroy’d, and though we may with tollerable Congruity call them Miscibilia, because they are Distinct Bodies before they are put together, however afterwards they are so Confounded that I should rather call them Concretions, or Resulting Bodies, than mixt ones ”

“ For I finde that Helmont (an Author more considerable for his Experiments than many Learned men are pleas’d to think him) having had an Opportunity to prosecute an Experiment much of the same nature with those I have been now speaking of, for five Years together, obtain’d at the end of that time so notable a Quantity of Transmuted Water, 113that I should scarce Think it fit to have his Experiment, and Mine Mention’d together, were it not that the Length of Time Requisite to this may deterr the Curiosity of some, and exceed the leasure of Others ”

“ I consider that it very often happens that the small parts of Bodies cohere together but by immediate Contact and Rest ; and that however, there are few Bodies whose minute Parts stick so close together, to what cause soever their Combination be ascrib’d, but that it is possible to meet with some other Body, whose small Parts may get between them, and so dis-joyn them ”

“ I shall reply, that besides that I have Mention’d them as much to Illustrate what I propos’d, as to prove it, it will be Difficult to Evince that Nature her self does not make Decompound Bodies, I mean mingle together such mixt Bodies as are already Compounded of Elementary, or rather of more simple ones. ”

“ I need not Subjoyne that I had it also in my thoughts to try how Experiments to the same purpose with those I related to You would succeed in other Bodies then Vegetables, because importunate Avocations having hitherto hinder’d me from putting my Design in Practise, I 115can yet speak but Confecturally of the Success : but the best is, that the Experiments already made and mention’d to you need not the Assistance of new Ones, to Verifie as much as my present task makes it concern me to prove by Experiments of this Nature. ”

“ I might easily ( Continues Carneades ) enlarge my self on such Considerations, if I were Now Oblig’d to give You my Judgment of the Thalesian, and Helmontian, Hypothesis. But Whether or no we conclude that all things were at first Generated of Water, I may Deduce from what I have try’d Concerning the Growth of Vegetables, nourish’d with water, all that I now propos’d to my Self 130or need at present to prove, namely that Salt, Spirit, Earth, and ev’n Oyl (though that be thought of all Bodies the most opposite to Water) may be produc’d out of Water ”

“ Having ( sayes he ) discern’d such great Wonders by the Natural Operation of Water, I would know what may be done with it by Art Imitating Nature. Wherefore I took Water which I well knew not to be compounded, nor to be mix’d with any other thing than that Spirit of Life ( whereof he had spoken before ; ) and with a Heat Artificial, Continual and Proportionate, I prepar’d and dispos’d it by the above mention’d Graduations of Coagulation, Congelation, and Fixation, untill it was turn’d into Earth, which Earth produc’d Animals, Vegetables and Minerals. ”

“ For since that ( as we have seen ) out of fair Water alone, not only Spirit, but Oyle, and Salt, and Earth may be Produced ; It will follow that Salt and Sulphur are not Primogeneal Bodies, and principles, since they are every Day made out of plain Water by the Texture which the Seed or Seminal principle of plants puts it into. ”

“ But because differing in the Opinions about the Elements from both Parties, I think I can take a middle Course, and Discourse to you of Mistion after a way that does neither perfectly agree, nor perfectly disagree with either, as I will not peremptorily define, whether there be not Cases wherein some Phaenomena of Mistion seem to favour the Opinion that the Chymists Patrons borrow’d of the Antients, I shall only endeavour to shew You that there 148are some cases which may keep the Doubt, which makes up my second General Consideration from being unreasonable. ”

“ And in the next place, that though it may be probably pretended that in those Mixtures that are made immediately of the Bodies that are call’d Principles or Elements, the mingl’d Ingredients may better retain their own Nature in the Compounded Mass, and be more easily separated from thence ; yet, besides that it may be doubted, whether there be any such Primary Bodies, I see not why the 161reason I alleadg’d, of the destructibility of the Ingredients of Bodies in General, may not sometimes be Applicable to Salt Sulphur or Mercury ”

“ 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 ”

“ Yet as to the Atomes, or other Insensible Parcels of Matter, whereof each of the Miscibilia consisted, they retain’d each of them its own Nature, being but by Apposition or Juxta-Position uni139ted with the rest into one Bodie. ”

“ And we see also in Animals, that their 133blood may be compos’d of Divers very Differing Mixt Bodies, since we find it observ’d that divers Sea-Fowle tast rank of the Fish on which they ordinarily feed ”