An essay on the powers and mechanism of nature; : intended, by a deeper analysis of physical principles, to extend, improve, and more firmly establish, the grand superstructure of the Newtonian system. / By Robert Young.
- Young, Robert
- Date:
- M DCC LXXXVIII. [1788]
Licence: Public Domain Mark
Credit: An essay on the powers and mechanism of nature; : intended, by a deeper analysis of physical principles, to extend, improve, and more firmly establish, the grand superstructure of the Newtonian system. / By Robert Young. Source: Wellcome Collection.
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![C ‘52 ] or enable it to conceive of any relation or mu- tual intercourfe between them. Hence, although moft fpecies of bodies underwent an analyfis, matter itfelf was never conceived of as a fubjeft - of decompofition, or as a compound confiding of principles more fimple than itfelf. o When any compound is refolved into its component principles, thofe principles have feparately each a different nature from the compound which they form when united, and require each to be marked by a different name. p We mufl be careful here to difcriminate be- tween the divifion of wholes into parts, and the reparation of compounds into principles; a half, fourth, tenth, or any fra6lional part, has the fame nature with the whole and differs only in quantity ; for this fort of divifion has no refpeB: to the qualities of things, but to their relative quantities only. But when a certain nature or quality belonging to any body, is produced from the union of feveral other bodies, each of different qualities, here arife a ground of divi- fion of a different fort, which has no regard to quantities, wholes, or parts, but merely to the qualities of things ; and when a fingle fubflance refults from an union of two or more, the fepa- ration of thofe things, thus united, reproduces the](https://iiif.wellcomecollection.org/image/b2878196x_0180.jp2/full/800%2C/0/default.jpg)
