You will ask me, How comes then the difference of so many Parts and Creatures in Nature, if there be no degrees of Purity, Activity, and Subtilty in the substance of the rational, and in the substance of the sensitive Matter? As for example: if there were no such degrees of the Parts of rational Matter amongst themselves, as also of the Parts of the sensitive, there would be no difference betwixt Animals, Vegetables, Minerals, and Elements, but all Creatures would be alike without distinction, and have the same manner of sense and reason, life and knowledg. I answer, That although each sort or degree of animate Matter, rational as well as sensitive, has in it self or its own substance no degrees of purity, rarity, and subtilty, but is one and the same in its nature or essence; nevertheless, each has degrees of quantity, or parts, which degrees of quantity do make the onely difference betwixt the several creatures or parts of Nature, as well in their general, as particular kinds; for both the rational and sensitive matter being corporeal, and so dividable into parts, some creatures do partake more, some less of them, which makes them to have more or less, and so different sense and reason, each according to the nature of its kind: Nay this difference of the degrees of quantity or parts in the substance of the rational and sensitive Matter, makes also the difference betwixt particulars in every sort of Creatures, as for example, between several particular Men: But as I said, the nature or essence of the sensitive and rational Matter is the same in all; for the difference consists not in the Nature of Matter, but onely in the degrees of quantity, and parts of Matter, and in the various and different actions or motions of this same Matter. And thus Matter being dividable, there are numerous lives and souls in Nature, according to the variousness of her several Parts and Creatures. Next your _Author_, mentioning the _Causes and Principles of natural Bodies_, assigns two first or chief beginnings and corporeal causes of every Creature, to wit, the _Element of Water_, and the _Ferment or Leaven_; which Ferment he calls a formal created being; neither a substance, nor an accident, but a neutral thing. Truly, _Madam_, my reason is not able to conceive this neutral Being; for it must either be something or nothing in Nature: and if he makes it any thing betwixt both, it is a strange Monster; and will produce monstrous effects: and for Water, if he doth make it a Principle of Natural things, I see no reason why he excludes the rest of the Elements: But, in my opinion, Water, and the rest of the Elements, are but effects of Nature, as other Creatures are, and so cannot be prime causes. The like the Ferment, which, to my sense and reason, is nothing else, but a natural effect of natural matter. Concerning his opinion, That _Causes and Beginnings_ are all one, or that there is but little difference betwixt them, I