An analysis of the medicinal waters of Tunbridge Wells.

Date:
1792
Catalogue details

Licence: Public Domain Mark

Credit: An analysis of the medicinal waters of Tunbridge Wells. Source: Wellcome Collection.

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    by the lime water, or rather that part of the refiduum which the water could not abforb (experiments 15th and 22d); and which was found incapable of fup- porting flame, or of being diminiflied in bulk by mixture with nitrous air. Thirdly, common air, or that part of the refiduum which nitrous air did di- minilh. When, for example, we find the in- fufion of litmus changed red (experi¬ ment 4th), we fay it is becaufe the aerial acid is in excefs, or that the wa¬ ter contains more of it than the calx of iron can combine with. We fay alfo that the ferruginous pellicle, obfervable on the furface of thefe waters, after expofure (experiment ift), and the di¬ minution of their effects in experiment 14th, muff depend upon the fepa- ration of the aerial acid from its union with the calx of iron, in confequence
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