Directions for impregnating water with fixed air : in order to communicate to it the peculiar spirit and virtues of Pyrmont water, and other mineral waters of a similar nature / By Joseph Priestley.

  • Priestley, Joseph, 1733-1804.
Date:
1772
Catalogue details

Licence: Public Domain Mark

Credit: Directions for impregnating water with fixed air : in order to communicate to it the peculiar spirit and virtues of Pyrmont water, and other mineral waters of a similar nature / By Joseph Priestley. Source: Wellcome Collection.

    23/34 (page 15)
    for this purpofe, I was affifted by Mr. Hey, a furgeon in this town, who is well fkilled in the methods of examining the properties of mineral waters. 17. Doctor Brownrigg, who made his experiments on Pyrmont water at the fpring head, never found that it contained fo much as one half of an equal bulk of air ; but in this method the water is eafily made to imbibe an equal bulk. For it muft be obferved, that a confiderable quantity of the moil foluble part of the air, is incor¬ porated with the water, as it firft afeends through it, before it occupies its place, in the upper part of the veffel. 18. The heat of boiling water, will ex¬ pel all the fixed air, if a phial containing this impregnated water be held in it; but it will often require above half an hour to effedt it compleatly. 19. If any perfon would chufe to make this medicated water more nearly to re¬ ferable genuine Pyrmont water. Sir John Pringle informs me, that from eight to ten