Part 9

And lastly, and if we will Consult Chymical Experiments, we shall find the Advantages of the Chymical Doctrine above the Peripatetick Title little less then Palpable. For in that Operation that Refiners call Quartation, which they employ to purifie Gold, although three parts of Silver be so exquisitely mingl'd by Fusion with a fourth Part of Gold (whence the Operation is Denominated) that the resulting Mass acquires severall new Qualities, by virtue of the Composition, and that there is scarce any sensible part of it that is not Compos'd of both the metalls; Yet if You cast this mixture into _Aqua Fortis_, the Silver will be dissolv'd in the _Menstruum_, and the Gold like a dark or black Powder will fall to the Bottom of it, and either Body may be again reduc'd into such a Metal as it was before, which shews: that it retain'd its Nature, notwithstanding its being mixt _per Minima_ with the other: We likewise see, that though one part of pure Silver be mingled with eight or ten Parts, or more, of Lead, yet the Fire will upon the Cuppel easily and perfectly separate them again. 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; but affords a vast proportion of Phlegm or water: which could not be, if as the Peripateticks suppose, every, even of the minutest Particles, were of the same nature with the whole, and consequently did contain both Earth and Water, and Aire, and Fire; Wherefore as to what _Aristotle_ principally, and almost only Objects, that unless his Opinion be admitted, there would be no true and perfect Mistion, but onely Aggregates or Heaps of contiguous Corpuscles, which, though the Eye of Man cannot discerne, yet the Eye of a _Lynx_ might perceive not to be of the same Nature with one another and with their _Totum_, as the Nature of Mistion requires, if he do not beg the Question, and make Mistion to consist in what other Naturalists deny to be requisite to it, yet He at least objects That as a great Inconvenience which I cannot take for such, till he have brought as Considerable Arguments as I have propos'd to prove the contrary, to evince that Nature makes other Mistions than such as I have allowed, wherein the _Miscibilia_ are reduc'd into minute Parts, and United as farr as sense can discerne: which if You will not grant to be sufficient for a true Mistion, he must have the same Quarrel with Nature her self, as with his Adversaries.

Wherefore (Continues _Eleutherius_) I cannot but somewhat marvail that _Carneades_ should oppose the Doctrine of the Chymist in a Particular, wherein they do as well agree with his old Mistress, Nature, as dissent from his old Adversary, _Aristotle_.

I must not (replies _Carneades_) engage my self at present to examine thorowly the Controversies concerning Mistion: And if there were no third thing, but that I were reduc'd to embrace absolutely and unreservedly either the Opinion of _Aristotle_, or that of the Philosophers that went before him, I should look upon the latter, which the Chymists have adopted, as the more defensible Opinion: 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 _Phænomena_ 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 are some cases which may keep the Doubt, which makes up my second General Consideration from being unreasonable.

I shall then freely acknowledge to You (sayes _Carneades_) that I am not over well satisfi'd with the Doctrine that is ascribed to _Aristotle_, concerning Mistion, especially since it teaches that the four Elements may again be separated from the mixt Body; whereas if they continu'd not in it, it would not be so much a Separation as a Production. 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; yet I, who meet with very few Opinions that I can entirely Acquiesce in, must confess to You that I am inclin'd to differ not only from the _Aristotelians_, but from the old Philosophers and the Chymists, about the Nature of Mistion: And if You will give me leave, I shall Briefly propose to you my present Notion of it, provided you will look upon it, not so much as an Assertion as an _Hypothesis_; in talking of which I do not now pretend to propose and debate the whole Doctrine of Mistion, but to shew that 'tis not Improbable, that sometimes mingl'd substances may be so strictly united, that it doth not by the usuall Operations of the Fire, by which Chymists are wont to suppose themselves to have made the _Analyses_ of mixt Bodies, sufficiently appear, that in such Bodies the _Miscibilia_ that concurr'd to make them up do each of them retain its own peculiar Nature: and by the _Spagyrists_ Fires may be more easily extricated and Recover'd, than Alter'd, either by a Change of Texture in the Parts of the same Ingredient, or by an Association with some parts of another Ingredient more strict than was that of the parts of this or that _Miscibile_ among themselves. At these words _Eleu._ having press'd him to do what he propos'd, and promis'd to do what he desir'd;

I consider then (resumes _Carneades_) that, not to mention those improper Kinds of mistion, wherein _Homogeneous_ Bodies are Joyn'd, as when Water is mingl'd with water, or two Vessels full of the same kind of Wine with one another, the mistion I am now to Discourse of seems, Generally speaking, to be but an Union _per Minima_ of any two or more Bodies of differing Denominations; as when Ashes and Sand are Colliquated into Glass or Antimony, and Iron into _Regulus Martis_, or Wine and Water are mingl'd, and Sugar is dissolv'd in the Mixture. Now in this general notion of Mistion it does not appear clearly comprehended, that the _Miscibilia_ or Ingredients do in their small Parts so retain their Nature and remain distinct in the Compound, that they may thence by the Fire be again taken asunder: For though I deny not that in some Mistions of certain permanent Bodies this Recovery of the same Ingredients may be made, yet I am not convinc'd that it will hold in all or even in most, or that it is necessarily deducible from Chymicall Experiments, and the true Notion of Mistion. To explain this a little, I assume, that Bodies may be mingl'd, and that very durably, that are not Elementary or resolv'd [Errata: nor have been resolved] into Elements or Principles that they may be mingl'd; as is evident in the _Regulus_ of Colliquated Antimony, and Iron newly mention'd; and in Gold Coyne, which lasts so many ages; wherein generally the Gold is alloy'd by the mixture of a quantity, greater or lesser, (in our Mints they use about a 12th. part) of either silver, or Copper, or both. Next, I consider, that there being but one Universal matter of things, as 'tis known that the _Aristotelians_ themselves acknowledge, who call it _Materia Prima_ (about which nevertheless I like not all their Opinions,) the Portions of this matter seem to differ from One Another, but in certain Qualities or Accidents, fewer or more; upon whose Account the Corporeal Substance they belong to receives its Denomination, and is referr'd to this or that particular sort of Bodies; so that if it come to lose, or be depriv'd of those Qualities, though it ceases not to be a body, yet it ceases from being that kind of Body as a Plant, or Animal; or Red, Green, Sweet, Sowre, or the like. 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; or may be fitted to cohere more strongly with some of them, then those some do with the rest; or at least may be combin'd so closely with them, as that neither the Fire, nor the other usual Instruments of Chymical Anatomies will separate them. These things being promis'd, I will not peremptorily deny, but that there may be some Clusters of Particles, wherein the Particles are so minute, and the Coherence so strict, or both, that when Bodies of Differing Denominations, and consisting of such durable Clusters, happen to be mingl'd, though the Compound Body made up of them may be very Differing from either of the Ingredients, yet each of the little Masses or Clusters may so retain its own Nature, as to be again separable, such as it was before. As when Gold and Silver being melted together in a Due Proportion (for in every Proportion, the Refiners will tell You that the Experiment will not succeed) _Aqua Fortis_ will dissolve the Silver, and leave the Gold untoucht; by which means, as you lately noted, both the Metalls may be recover'd from the mixed Mass. But (Continues _Carneades_) there are other Clusters wherein the Particles stick not so close together, but that they may meet with Corpuscles of another Denomination, which are dispos'd to be more closely United with some of them, then they were among themselves. And in such case, two thus combining Corpuscles losing that Shape, or Size, or Motion, or other Accident, upon whose Account they were endow'd with such a Determinate Quality or Nature, each of them really ceases to be a Corpuscle of the same Denomination it was before; and from the Coalition of these there may emerge a new Body, as really one, as either of the Corpuscles was before they were mingl'd, or, if you please, Confounded: Since this Concretion is really endow'd with its own Distinct qualities, and can no more by the Fire, or any other known way of _Analysis_, be divided again into the Corpuscles that at first concurr'd to make it, than either of them could by the same means be subdivided into other Particles. But (sayes _Eleutherius_) to make this more intelligible by particular examples; If you dissolve Copper in _Aqua Fortis_, or Spirit of Nitre, (for I remember not which I us'd, nor do I think it much Material) You may by Crystalizing the Solution Obtain a goodly Vitriol; which though by Virtue of the Composition it have manifestly diverse Qualities, not to be met with in either of the Ingredients, yet it seems that the Nitrous Spirits, or at least many of them, may in this Compounded Mass retain their former Nature; for having for tryal sake Distill'd this Vitrioll Spirit, there came over store of Red Fumes, which by that Colour, by their peculiar stinke, and by their Sourness, manifested themselves to be, Nitrous Spirits; and that the remaining Calx continu'd Copper, I suppose you'l easily beleeve. 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; nor can any such Acid Parts as were put to the _Minium_ be Separated by any known way from the _Saccharum Saturni_ resulting from them both; for not only there is no Sowrness at all, but an admirable Sweetness to be tasted in the Concretion; and not only I found not that Spirit of Wine, which otherwise will immediately hiss when mingl'd with strong Spirit of Vinager, would hiss being pour'd upon _Saccharum Saturni_, wherein yet the Acid Salt of Vinager, did it Survive, may seem to be concentrated; but upon the Distillation of _Saccharum Saturni_ by its Self I found indeed a Liquor very Penetrant, but not at all Acid, and differing as well in smell and other Qualities, as in tast, from the Spirit of Vinager; which likewise seem'd to have left some of its Parts very firmly united to the _Caput Mortuum_, which though of a Leaden Nature was in smell, Colour, &c. differing from _Minium_; which brings into my mind, that though two Powders, the one Blew, and the other Yellow, may appear a Green mixture, without either of them losing its own Colour, as a good Microscope has sometimes inform'd me; yet having mingl'd _Minium_ and _Sal Armoniack_ in a requisite Proportion, and expos'd them in a Glass Vessel to the Fire, the whole Mass became White, and the Red Corpuscles were destroy'd; for though the Calcin'd Lead was separable from the Salt, yet you'l easily beleeve it did not part from it in the Forme of a Red Powder, such as was the _Minium_, when it was put to the _Sal Armoniack_. I leave it also to be consider'd, whether in Blood, and divers other Bodies, it be probable, that each of the Corpuscles that concurr to make a Compound Body doth, though some of them in some Cases may, retain its own Nature in it, so that Chymsts [Transcriber's Note: Chymists] may Extricate each sort of them from all the others, wherewith it concurr'd to make a Body of one Denomination.

I know there may be a Distinction betwixt Matter _Immanent_, when the material Parts remain and retain their own Nature in the things materiated, as some of the Schoolmen speak, (in which sence Wood, Stones and Lime are the matter of a House,) and _Transient_, which in the materiated thing is so alter'd, as to receive a new Forme, without being capable of re-admitting again the Old. 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_; others _Peculiar_, which belong to this or that sort of Bodies; as Butter and a kind of whey may be said to be the Proper Principles of Cream: and I deny not, but that these Distinctions may in some Cases be of Use; but partly by what I have said already, and partly by what I am to say, You may easily enough guess in what sence I admit them, and discerne that in such a sence they will either illustrate some of my Opinions, or at least will not overthrow any of them.

To prosecute then what I was saying before, I will add to this purpose, That since the Major part of Chymists Credit, what those they call Philosophers affirme of their Stone, I may represent to them, that though when Common Gold and Lead are mingled Together, the Lead may be sever'd almost un-alter'd from the Gold; yet if instead of Gold a _Tantillum_ of the Red _Elixir_ be mingled with the Saturn, their Union will be so indissoluble in the perfect Gold that will be produc'd by it, that there is no known, nor perhaps no possible way of separating the diffus'd _Elixir_ from the fixed Lead, but they both Constitute a most permanent Body, wherein the Saturne seems to have quite lost its Properties that made it be call'd Lead, and to have been rather transmuted by the _Elixir_, then barely associated to it. So that it seems not alwayes necessary, that the Bodies that are put together _per minima_, should each retain its own Nature; So as when the Mass it Self is dissipated by the Fire, to be more dispos'd to re-appear in its Pristine Forme, then in any new one, which by a stricter association of its Parts with those of some of the other Ingredients of the _Compositum_, then with one another, it may have acquired.

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; and _though_, perhaps, some other and better Account may be propos'd, upon which the name of mistion may remain; yet if what I have said be thought Reason, I shall not wrangle about Words, though I think it fitter to alter a Terme of Art, then reject a new Truth, because it suits not with it. If it be also Objected that this Notion of mine, concerning mixtion, though it may be allow'd, when Bodies already Compounded are put to be mingl'd, yet it is not applicable to those mixtions that are immediately made of the Elements, or Principles themselves; I Answer in the first place, that I here Consider the Nature of mixtion somewhat more Generally, then the Chymists, who yet cannot deny that there are oftentimes Mixtures, and those very durable ones, made of Bodies that are not Elementary. 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 reason I alleadg'd, of the destructibility of the Ingredients of Bodies in General, may not sometimes be Applicable to Salt Sulphur or Mercury; 'till it be shewn upon what account we are to believe them Priviledged. And however, (if you please but to recall to mind, to what purpose I told you at First, I meant to speak of Mistion at this Time) you will perhaps allow that what I have hitherto Discoursed about it may not only give some Light to the Nature of it in general (especially when I shall have an Opportunity to Declare to you my thoughts on that subject more fully) but may on some Occasions also be Serviceable to me in the Insuing Part of this Discourse.

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; yet this is not all that may be collected from those Experiments. For from them there seems also Deducible something that Subverts an other Foundation of the Chymical Doctrine. 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. And this would not perhaps seem so strange, if through pride, or negligence, We were not Wont to Overlook the Obvious and Familiar Workings of Nature; 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. And yet I see not why from a new shufling and Disposition of the Component Particles of a body, it should be much harder for Nature to compose a body dissoluble in Water, of a portion of Water that was not so before, then of the Liquid substance of an Egg, which will easily mix with Water, to produce by the bare warmth of a hatching Hen, Membrans, Feathers, Tendons, and other parts, that are not dissoluble in Water as that Liquid Substance was: Nor is the Hardness and Brittleness of Salt more difficult for Nature to introduce into such a yielding body as Water, then it is for her to make the Bones of a Chick out of the tender Substance of the Liquors of an Egg. But instead of prosecuting this consideration, as I easily might, I will proceed, as soon as I have taken notice of an objection that lies in my Way. For I easily foresee it will be alledged, that the above mentioned Examples are all taken from Plants, and Animals, in whom the Matter is Fashioned by the Plastick power of the seed, or something analogous thereunto. 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 fashions 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. And 'tis only for the Possibility of this that I am now contending.

THE

SCEPTICAL CHYMIST.

_The Third Part._