The life of President Edwards: . not only barely to touch insome points or lines thereof; (I mean mathema-tical points or lines, as two perfect globes do, oras a cyUnder^does a plain, when it lies on one side,and as all atoms do each other, except the surfaceswhere they happen to be infiniti^ly exactly fittedto join each other,) but so that the body L, al-though it may have some little holes in it, yet ithas an absolute plenum, continued all along be-tween these holes; so that it is as impregnable, as a body that has no h olesat all. This will be understood more fully, after we have proved, th
The life of President Edwards: . not only barely to touch insome points or lines thereof; (I mean mathema-tical points or lines, as two perfect globes do, oras a cyUnder^does a plain, when it lies on one side,and as all atoms do each other, except the surfaceswhere they happen to be infiniti^ly exactly fittedto join each other,) but so that the body L, al-though it may have some little holes in it, yet ithas an absolute plenum, continued all along be-tween these holes; so that it is as impregnable, as a body that has no h olesat all. This will be understood more fully, after we have proved, that twoatoms, touching each other by surfaces, can never be separated. Now it is time to apply what we have said concerning atoms, to provethat all bodies are compounded of such atoms; for if we suppose that allthose bodies, which are any way familiar to our senses, have ifiterstices sointerspersed throughout the whole body, that some parts of it do only touchothers, and are not conjoined with them, by which they are rendered im-. 712 APPENDIX. perfectly solid; yet we must allow that those parcels of matter, which arebetween the pores, i. e- between this and the next adjacent pore, have nopores at all in them, and consequently are plenums, or absolute solids oratoms. And surely all bodies, that have pores, are made up of parcels ofmatter, which are between the pores, which we have proved to be atoms. Proposition 2. Two or more atoms, or perfect solids, touching eachother by surfaces,( I mean so that every point, in any surface of the one, shalltouch every point in some surface of the other; that is, not simply in someparticular parts or lines of their surfaces, however many, for whateverdoes touch, in more than points and lines, toucheth in every point of somesurface,) thereby become one and the same atom, or perfect solid. This will be abundantly clear from the figure. Suppose the perfectsolid, A B, and the perfect solid, C D, to be precisely Pig, 5. alike to the halves of the
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