An enquiry into the medicinal virtues of Bristol-water: and the indications of cure which it answers / By George Randolph.

  • Randolph, George, 1708-1764.
Date:
1750
Catalogue details

Licence: Public Domain Mark

Credit: An enquiry into the medicinal virtues of Bristol-water: and the indications of cure which it answers / By George Randolph. Source: Wellcome Collection.

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    prevented by Means of Springs, which feck their Exit from within outwards, and con¬ vey with them vaft Quantities of Air, which, by being pent up in the Body of the Earth, might otherwife be of evil Con- fequence : So that the Channels thro’ which Springs flow, may be confidered as fo many Vent-holes, {quos aqua fubeunt et aura) ferving to give Paflage to that which would otherwife be deftruclive of the Whole. It is highly probable, that common Springs, carry nothing but common Air. Mineral Springs, Air replete with Mineral Effluvia, though not of fufficient Aftivity to commu¬ nicate any Heat to the Water : But others, there are, which are not only impregnated, but alfo heated from this Caule ; and neither of thefe, I fay, receive their Virtues, or their Heat, from Salts or other Subftances foluble in them 5 but from Air, replete with Mine¬ ral Effluvia, which infinuates itfelf into them, and intimately unites with them, and very often heats them ; fo that we are no longer confined,'to a few natural Produds of the Earth, diffolvable in Water, and fuch like unaftive Principles ; but are open to all that Heat itfelf can produce, from any mine¬ ral Body whatfoevcr. But