Page:Essay on the mineral waters of Carlsbad (1835).pdf/37

 removed four times a year by a boring apparatus. The Sprudel water boils eggs hard, and is employed, since time immemorial, to scalding poultry and pigs, and to other such purposes, which are more oeconomical than grateful to the eye. The difference of temperature between fountains, coming from the same reservoir, is generally accounted for by the various distances of their orifice from the great focus, and by the warmer or cooler soil upon which the water circulates in the impenetrable meanders of this aquatic volcano.

The springs of the furious fountain (as Frederick Hoffmann called the Sprudel), the truest emblem of perpetual motion, are in general explained in the following manner: The npperupper [sic] parts of the reservoir fill themselves with carbonic acid gazgas [sic], escaping the more freely from the hot fluid mass, as the pressure, under which it lays, diminishes in proportion to the evaporation of the gazgas [sic]. In that free slate, the gazgas [sic] accumulates in the upper part of the cavity; when considerably increased, it depresses the surface of the water, which rushes out of the same orifice; and these two elements, under the form of vapour, escape together, giving in a minute, without intermission, eighteen or twenty ebullitions, from four to eight feet high. A hollow, unequal and subterraneous accompanies the emission of so much water, which, divided into myriads of globules, falls back in the same vessel (now in the form of a large artichoke) from which it springs, and is lead, by 3