an open Fire working upon some Bodies may really Associate themselves therewith, and add to the Quantity. But because I am not so sure, that when the Fire works upon Bodies included in Glasses, it does it by a reall Trajection of the Fiery Corpuscles themselves, through the Substance of the Glass, I will proceed to what is next to be mention’d.
I could (sayes Eleutherius) help you to some Proofes, whereby I think it may be made very probable, that when the Fire acts immediately upon a Body, some of its Corpuscles may stick to those of the burnt Body, as they seem to do in Quicklime, but in greater numbers, and more permanently. But for fear of retarding Your Progress, I shall desire you to deferr this Enquiry till another time, and proceed as you intended.
You may then in the next place (sayes Carneades) observe with me, that not only there are some Bodies, as Gold, and Silver, which do not by the usual Examens, made by Fire, Discover themselves to be mixt; but if (as You may Remember I formerly told You) it be a De-compound Body that is Dissipable into several Substances, by being expos’d to the Fire it may be resolv’d into such as are neither Elementary, nor such as it was upon its last mixture Compounded of; but into new Kinds of mixts. Of this I have already given You some Examples in Sope, Sugar of Lead, and Vitrioll. Now if we shall Consider that there are some Bodies, as well Natural, (as that I last nam’d) as Factitious, manifestly De-compounded; That in the Bowells of the Earth Nature may, as we see she sometimes does, make strange Mixtures; That Animals are nourish’d with other Animals and Plants; And, that these themselves have almost all of them their Nutriment and Growth, either from a certain Nitrous Juice Harbour’d in the Pores of the Earth, or from the Excrements of Animalls, or from the putrify’d Bodies, either of living Creatures or Vegetables, or from other Substances of a Compounded Nature; If, I say, we consider this, it may seem probable, that there may be among the Works of Nature (not to mention those of Art) a greater Number of De-compound Bodies,