. Bulletin. Science. Figure 29.—Charging a Plante cell with a Bunsen battery. From Gaston Plante, Recherches sur I'electricite, Paris, 1883, p. 43. Ritter, using the galvanic current, electrolyzed water and precipitated metals from their solution.''* The interesting results of Nicholson and Carlisle led to similar experiments on a larger scale, and it was not long before the new force of electricity was replacing fire as a means of analyzing a chemical compound into its elements. In 1807 Humphrey Davy,"*^ as mentioned earlier, tried the action of the voltaic current on soda and potash and
. Bulletin. Science. Figure 29.—Charging a Plante cell with a Bunsen battery. From Gaston Plante, Recherches sur I'electricite, Paris, 1883, p. 43. Ritter, using the galvanic current, electrolyzed water and precipitated metals from their solution.''* The interesting results of Nicholson and Carlisle led to similar experiments on a larger scale, and it was not long before the new force of electricity was replacing fire as a means of analyzing a chemical compound into its elements. In 1807 Humphrey Davy,"*^ as mentioned earlier, tried the action of the voltaic current on soda and potash and so discovered two new metals—sodium and potassium. In order to prove his results, Davy successfully reversed this analy- sis with a synthesis of these oxides. The next year other new elements were discovered: calcium, barium, strontium, and magnesium.^" Figure 28.—Plante cell. From Gaston Plante, Recherches sur Peleclricite, Paris, 1883, p. 35. *'Johann Ritter, "Uber den elektrischen oder galvanischen Apparat Volta's und iiber die chemische Wirkungen der galvanischen Elektrizitat, von Nicholson, Cruickshanks und Henry," Annalen der Physik, 1800, vol. 6, pp. 468-472. •" Davy, op. cit. (footnote 11). 5» Davy, op. cit. (footnote 15). 250 BULLETIN 228: CONTRIBUTIONS FROM THE MUSEUM OF HISTORY AND TECHNOLOGY. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution; United States. Dept. of the Interior; United States National Museum. Washington, Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off
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