the same bulk, though to fill up the porosities and other Cavities it be made up into a mass or paste with Water, which it self they allow to be a heavy Element. But to returne to our _Spagyrists_, we see that Chymical Oyles and fixt Salts, though never so exquisitely purify'd and freed from terrestrial parts, do yet remain ponderous enough. And Experience has inform'd me, that a pound, for instance, of some of the heaviest Woods, as _Guajacum_ that will sink in Water, being burnt to Ashes will yield a much less weight of them (whereof I found but a small part to be Alcalyzate) then much lighter Vegetables: As also that the black Charcoal of it will not sink as did the wood, but swim; which argues that the Differing Gravity of Bodies proceeds chiefly from their particular Texture, as is manifest in Gold, the closest and Compactest of Bodies, which is many times heavier then we can possibly make any parcell of Earth of the same Bulk. I will not examine, what may be argu'd touching the Gravity or Quality Analagous thereunto, of even Celestial bodies, from the motion of the spots about the Sun, d [Errata: and] from the appearing equality of the suppos'd Seas in the Moon; nor consider how little those _Phaemonea_ [Transcriber's Note: Phaenomena] would agree with what _Sennertus_ presumes concerning Gravity. But further to invalidate his supposition, I shall demand, upon what Chymical Principle Fluidity depends? And yet Fluidity is, two or three perhaps excepted, the most diffused quality of the universe, and far more General then almost any other of those that are to be met with in any of the Chymicall Principles, or _Aristotelian_ Elements; since not only the Air, but that vast expansion we call Heaven, in comparison of which our Terrestrial Globe (supposing it were all Solid) is but a point; and perhaps to [Errata: too] the Sun and the fixt Stars are fluid bodies. I demand also, from which of the Chymical Principles Motion flowes; which yet is an affection of matter much more General then any that can be deduc'd from any of the three Chymical Principles. I might ask the like Question concerning Light, which is not only to be found in the Kindl'd Sulphur of mixt Bodis [Transcriber's Note: Bodies], but (not to mention those sorts of rotten Woods, and rotten Fish that shine in the Dark) in the tails of living Glow-wormes, and in the Vast bodies of the Sun and Stars. I would gladly also know, in which of the three Principles the Quality, we call Sound, resides as in its proper Subject; since either Oyl falling upon Oyle, or Spirit upon Spirit, or Salt upon Salt, in a great quantity, and from a considerable height, will make a noise, or if you please, create a sound, and (that the objection may reach the _Aristotelians_) so will also water upon water, and Earth upon Earth. And I could name other qualities to be met within divers bodies, of which I suppose my Adversaries will not in haste assign any Subject,