No Animal, or Vegetable, could be produced, but by such, or such particular Producers; neither could an Animal, or Vegetable, be produced without some Corporeal Motions of their Producers; that is, some of the Producers Self-moving Parts; otherwise the like Actions might produce, not only the like Creatures, but the same Creatures, which is impossible: Wherefore, the things produced, are part of the Producers; for, no particular Creature could be produced, but by such particular Producers. But this is to be noted, That all sorts of Creatures are produced by more, or fewer, Producers. Also, the first Producers are but the first Founders of the things produced, but not the only Builders: for, there are many several sorts of Corporeal Motions, that are the Builders; for, no Creature can subsist, or consist, by it self, but must assist, and be assisted: Yet, there are some differences in all Productions, although of the same Producers; otherwise all the Off-springs of one and the same Producer, would be alike: And though, sometimes, their several Off-springs may be so alike, as hardly to be distinguished; yet, that is so seldom, as it appears as a wonder; but there is a property in all Productions, as, for the Produced to belong as a Right and Property to the _Producer_. CHAP. IX. Of Resemblances of several Off-springs, or Producers. There are numerous kinds and sorts of Productions, and infinite manners and ways, in the actions of Productions; which is the cause that the Off-springs of the same Producers, are not so just alike, but that they are distinguishable; but yet there may not only be resemblances between particular Off-springs of the same Producers, as also of the same sort; but, of different sorts of Creatures: but the Actions of all Productions that are according to their own _Species_, are Imitating Actions, but not Bare Imitations, as by an Incorporeal Motion; for if so, then a covetous Woman, that loves Gold, might produce a Wedg of Gold instead of a Child; also, _Virgins_ might be as Fruitful as _Married Wives_. CHAP. X. Of the Several Appearances of the Exterior Parts of One Creature. Every altered Action of the Exterior Parts, causes an altered Appearance: As for example, A Man, or the like Creature, doth not appear when he is old, as when he was young; nor when he is sick, as when he is well in health; no, nor when he is cold, as when he is hot. Nor do they appear in several Passions alike: for, though Man can best perceive the Alteration of his own Kind, or Sort; yet, other Creatures have several Appearances, as well as Man; some of which, Man may perceive, though not all, being of a different sort. And not only Animals, but Vegetables, and Elements, have altered Appearances, and many that are subject to Man's perception. The Fourth Part. CHAP. I. Of Animal Productions; and of the Differences between Productions, and Transformations.