Your _Author_ condemns the _Schools_ for saying,[1] That _Air is moist_, or that it may be _converted into Water by pressing it together_; bringing an example of an _Iron Pipe, wherein Air has been pressed together, which afterwards in its driving out has, like a Hand-gun discharged with Gun-powder, sent a bullet thorow a board or plank._ Truly, _Madam_, concerning the moisture of Air, I am against it, but the transchanging of Air into Water I do verily believe, _viz._ that some sorts of Air may be contracted or condensed into Water, and that Water again may be dilated into Air, but not readily, commonly and easily by Art, but onely by Nature. Wherefore your _Authors_ Experiment can serve for no proof; for an artificial trial cannot be an infallible natural demonstration, the actions of Art, and the actions of Nature being for the most part very different, especially in productions and transmutations of natural things: Neither can an alteration of parts, cause an utter destruction of the whole, because when some parts change from their figures, other parts of matter change again into the like figures, by which successive change the continuation of the whole is kept up. Next your _Author_ reproves the Schools for maintaining the opinion, that _Air is hot_; for says he, _Water, Air, and Earth, are cold by Creation, because without Light, Heat, and the partaking of Life._ He might, in my opinion, conclude, as well, that Man is cold by Creation, because a Chameleon, or a Fish is cold, being all of animal kind: But why may not some sorts of Air, Water and Earth be hot, and some be cold, as well as some sorts of Light are hot, and some cold; and so several other Creatures? His Reasons prove nothing: for Light doth not make Heat, nor is it the principle of Heat; and it is no consequence to say, all that is without Light is without Heat, there being many things without Light, which nevertheless are Hot; But to say, Water, Air, and Earth are cold, because they are without heat, is no proof, but a meer begging of the principle; for it is but the same thing, as if I should say, this is no Stone, because it is no Glass. And that Water, Air and Earth, do not partake of Life, must be proved first, for that is not granted as yet, there being, according to my opinion, not one Creature that wants Life in all Nature. Again: your _Author_ is of opinion, That _Water is the first and chief Principle of all Natural things._ But this I can no more believe, then that _Water should never change or degenerate from its essence_: nay, if your _Author_ means, there shall always be Water in Nature, it is another thing; but if he thinks that not any part of water doth or can change or degenerate in its nature, and is the principle and chief producer of all other Creatures; then he makes Water rather a Creator then a Creature; and it seems, that those Gentiles which did worship Water, were of the same opinion, whereas yet he condemns all Pagan opinions