Sec. 32. He then proceeded further to examin the Nature of Bodies in this Sublunary World, _viz_. The different kinds of Animal, Plants, Minerals, and several sorts of Stones, Earth, Water, Exhalations, Ice, Snow, Hail, Smoak, Hoar, Frost, Flame, and Heat. In which he observ'd different Qualities, and different Actions, and that their Motions agreed in some respects, and differ'd in others: and considering these things with great Application, he perceiv'd that their Qualities also agreed in some things, and differ'd in others; and that so far as they agreed, they were _One_; but when consider'd with Relation to their differences, _a great many_: so that when he came to consider the Properties of things by which they were distinguish'd one from another,he found that they Multiplied so fast upon him, that 'twas impossible for him, to Comprehend them. Nay, when he consider'd the difference of his own Limbs, which he perceiv'd were all distinct from one another, by some Property and Action peculiar to each, it seem'd to him that there was a _Plurality_ in his Own Essence. And when he look'd upon any one Member it self, he found that it might be divided into a great many parts, from whence he concluded, that there must needs be a Plurality in his own Essence, and not only in his own but in every other also. Sec. 33. Then he enter'd upon another sort of Speculation of the second kind, by which he perceiv'd that tho' the parts of his Body were many, yet they were Conjoyned and Compacted together so as to make one Body, and that what difference there was between them consisted only in the difference of their Actions, which diversity proceeded from that Animal Spirit, the Nature of which he had before search'd into, and found out. Now he knew that his Spirit was One in Essence, and was really the Substance of his Being, and that all the rest of the Members serve that Spirit as Instruments, and in this Respect he perceiv'd his own Essence, to be _One_.