Volume 1

The chemical works of Caspar Neumann ... / abridged and methodized. With large additions, containing the later discoveries and improvements made in chemistry and the arts depending thereon by William Lewis.

  • Neumann, Caspar, 1683-1737.
Date:
1773
Catalogue details

Licence: Public Domain Mark

Credit: The chemical works of Caspar Neumann ... / abridged and methodized. With large additions, containing the later discoveries and improvements made in chemistry and the arts depending thereon by William Lewis. Source: Wellcome Collection.

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    commonly in a new light. Several fads are mentioned in the index which though deduci- ble by analogy from the experiments in the pages referred to, could not on that founda¬ tion alone be looked upon as certain. There are even lome fadls which have no reference at all, and which are not mentioned in the book. Thus Acacia, an infpiffated vegetable juice, prepared in Egypt9 rarely met with among us, med in medicine as a mild aftringent, is omitted by the author; and fuch an article did not feem to be of importance enough to be intro¬ duced : but on taking a review of the ajlrin- gency of vegetables in the index, the light in which this quality appeared there made Aca¬ cia worthy or notice ; for as among the vege¬ tables examined by the author, the aftringency of fome diffolves both in water and in fpirit, and that of others in fpirit only; Acacia is an inftance of a third kind of aftringent matter, diffolving in water only. CON-