The history and chemical analysis of the mineral water lately discovered in the city of Gloucester : the various diseases to which it is applicable considered, and the necessary regulations for drinking it with success ascertained and prescribed / by John Hemming.

  • Hemming, John, -1809.
Date:
1789
Catalogue details

Licence: Public Domain Mark

Credit: The history and chemical analysis of the mineral water lately discovered in the city of Gloucester : the various diseases to which it is applicable considered, and the necessary regulations for drinking it with success ascertained and prescribed / by John Hemming. Source: Wellcome Collection.

Provider: This material has been provided by University of Bristol Library. The original may be consulted at University of Bristol Library.

    32/94 (page 26)
    From the laft mentioned experiment made on the Gloucefter water, there is reafon to impute the white precipitated matter to the fixed air be- ing united to the lime, which is thereby rendered infoluble, and reduced to the ftate of calcareous earth, natural to it, previous to its calcination. It may at firfl appear unintelligible to fome of my readers, why this aerial acid fliould render calcareous earth infoluble, when I have juft mentioned that it is by means of the fame that it is kept in folutionI will, however, endea- vour to explain this, by informing them of one fingle faft, viz. that although lime is made info- luble by fixed air, which renders it the fame as chalk, yet, by the introduftion of a greater quan- tity of the fame acid, it is re-diffolved; the lime- water, therefore, when mixed with waters con- taining fixed air, will imbibe all the fuperabun- dant quantity, and the lime will thereby be ren- dered infoluble. The prefence of fixed air as an acid will ac- count for the change produced upon the infu- fion oflithmus, and the folution offoap; becaufe, when the water was expofed to the air, the acid elcaped in its uniform Hate. That there is ano- ther acid which fufpends the particles of other bodies