A medical commentary on fixed air ... / [Matthew Dobson].

  • Matthew Dobson
Date:
1779
Catalogue details

Licence: Public Domain Mark

Credit: A medical commentary on fixed air ... / [Matthew Dobson]. Source: Wellcome Collection.

    27/214 page 17
    Experiment I, / Two drams of powdered and well- dried chalk were put into a twenty- ounce vial, and to this were added three ounces of water : the vial, chalk, and water, weighed exadlly nine ounces, fix drams, and one fcruple. As much acid of vitriol diluted with water was then added, as was fufficient to feparate the whole of the Fixed Air of the chalk i which was effected by one ounce, one fcruple, and twelve grains of the dilute acid. The vial, with it’s contents, now weighed ten ounces, fix drams, and ten grains. Two fcruples therefore, and two grains of Fixed Air, had been feparated from this quantity of chalk by the addition of the acid. Experiment II. Two drams of dry and pure fait of tartar, managed as in the preceding ex¬ periment, yielded one fcruple and eight D grains
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