The Sixth Part.

And indeed, I see not why it should be necessary that all Agents that resolve Bodies into portions of differingly qualifi’d matter must work on them the same way, and divide them into just such parts, both for nature and Number, as the Fire dissipates them into. For since, as I noted before, the Bulk and shape of the small Parts of bodies, together with their Fitness and Unfitness to be easily put into Motion, may make the liquors or other substances such Corpuscles compose, as much to differ from each other as do some of the Chymical principles: Why may not something happen in this case, not unlike what is usuall in the grosser divisions of bodies by Mechanical Instruments? Where we see that some Tools reduce Wood, for Instance, into darts of several shapes, bignesse, and other qualities, as Hatchets and Wedges divide it into grosser parts; some more long and slender, as splinters; and some more thick and irregular, as chips; but all of considerable bulk; but Files and Saws makes a Comminution of it into Dust; which, as all the others, is of the more solid sort of parts; whereas others divide it into long and broad, but thin and flexible parts, as do Planes: And of this kind of parts it self there is also a variety according to the Difference of the Tools employ’d to work on the Wood; the shavings made by the plane being in some things differing from those shives or thin and flexible pieces of wood that are obtain’d by Borers, and these from some others obtainable by other Tools. Some Chymical Examples applicable to this purpose I have elsewhere given you. To which I may add, that whereas in a mixture of Sulphur and Salt of Tartar well melted and incorporated together, the action of pure spirit of wine digested on it is to separate the sulphureous from the Alcalizate Parts, by dissolving the former and leaving the latter, the action