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But although Scheele first pointed out the bleaching quality of his newly discovered gas, it was the French savant, Berthollet, who, acting upon Scheele's discovery that the new gas would decolorize vegetables and flowers, was led to suspect that this property might be turned to account in destroying the color of cloth.
Unlike Priestley, however, he planned all his experiments along the lines of definite theories from the beginning, the results obtained being the logical outcome of a predetermined plan. Scheele was the son of a merchant of Stralsund, Pomerania, which then belonged to Sweden.
There are numerous other interesting experiments that can be performed by the aid of iodine, but it is unnecessary here to consume more space. History. The Swedish chemist, Scheele, in 1774, while examining the action of hydrochloric acid on peroxide of manganese, first noticed this element. He called it dephlogisticated muriatic acid.
Scheele not only made the discoveries, but told the world how he had made them how any chemist might have made them if he chose for he never considered that he had really discovered any substance until he had made it, decomposed it, and made it again.
Until the time of Scheele the great subject of organic chemistry had remained practically unexplored, but under the touch of his marvellous inventive genius new methods of isolating and studying animal and vegetable products were introduced, and a large number of acids and other organic compounds prepared that had been hitherto unknown.
Another aspect also, the refined culture of modern Sweden, was the dominant note of the dinner at Hasselbacken with the heartfelt speech of the venerable Bishop Scheele of Visby.
As the renowned astronomer, Tycho Brahe, discovered in one of his pupils, John Kepler, an astronomer greater than the master, and as Bergman, the Swedish chemist, in a similar manner, discovered the greater chemist Scheele, so when Davy, in after years, was asked what he regarded as his greatest discovery, he briefly replied, "Michael Faraday."
Werner and Leopold von Buch also distinguished themselves among the investigators of the construction of the earth and mountains. Scheele, Gmelin, Liebig, etc., were noted chemists.
Count Rumford, Ritter, Scheele, Seebert and others, experimented with chlorine in regard to its effect when exposed to the action of light in combination with silver. In 1845, M. Edward Becquerel announced that he had "been successful in obtaining, by the agency of solar radiations, distinct impressions, of the colors of nature." On the 4th of March, 1851, Neipce, St.
Ingenhouz, some plants purified less air than others that is, they perspired less in the sunshine; and Mr. Scheele found that by putting peas into water which about half covered them they converted the vital air into fixed air, or carbonic-acid gas, in the same manner as in animal respiration. The circulation in the lungs or leaves of plants is very similar to that of fish.
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