53. Quod si dicatur, quod hæc repugnant positioni supra firmatæ, circa partium essentialem ordinationem inter se: quandoquidem videmus, quod in corporibus fluidis ac tenuibus una pars non servat ordinem essentialem ad aliam, sed accidentalem tantum, ita ut hæc pars vini, quæ modo alteri parti contigua est, mox inverso vase, aut moto vino, alteri parti unitur, et sic omnes partes diversam positionem habent quantumvis semper idem vinum sit, et ex hoc sequeretur, quod talium animalium corpora figurata stabiliter non essent, et consequenter, nec organica. 53. It may be objected that this is repugnant to what was said above concerning the essential ordering of the parts among themselves; that it is seen that, in fluid and subtile bodies, one part is not essentially but only accidentally connected with another; that a part of wine, for instance, just now contiguous with some other, soon comes in contact with a third, if the vessel be turned upside down or the wine shaken, and that all the parts together exchange positions at the same time, though it be still the same wine. Whence it should be inferred that, the bodies of those animals would have no permanent figure, and would consequently not be organic. 54. Respondeo negando assumptum; etenim in corporibus fluidis, quamvis non appareat, manet tamen essentialis partium ordinatio, qua stante stat in suo esse compositum, et hoc patet manifeste in vino: expressum enim ab uvis videtur liquor totaliter homogeneus, non tamen ita est; in eo enim sunt partes crassæ, quæ tractu temporis subsident in doliis: sunt etiam partes tenues, quæ evaporant: sunt partes fixæ, ut tartarus, sunt partes volatiles, ut sulphur, sive spiritus ardens; sunt partes mediæ inter volatile ac fixum, ut phlegma. Partes istæ ordinem essentialem inter se mutant; nam statim ac expressum est ab uvis, et mustum dicitur sulphur, sive spiritus volatilis, ita implicatum manet particulis tartari, qui fixus est, ut nullo modo avolare valeat. 54. I reply that I deny the assumption. In fact, if in fluid bodies the essential ordering of the parts is not apparent, it subsists none the less, and causes a compound to preserve its own state. Wine, for instance, when expressed from the grapes, seems a thoroughly homogeneous liquor, and yet is not so; for there are gross parts which, in the long run, subside in the casks; there are also slender parts which evaporate; fixed parts, such as tartar; volatile parts, such as brimstone and alcohol; others again, half volatile and half fixed, such as phlegm. Those divers parts do not respectively maintain an essential order; for no sooner has the must been expressed from the grapes, and been styled brimstone or volatile spirits, than it continues so closely involved with the particles of tartar, which is fixed, as not to be in any way able to escape.