A thorough job on cosmography was printed in Uppsala in 3 amounts. F. Mallet gave an account of astronomy; S. nourishment clarified the habits of the numerous races inhabiting the planet; and in 1766 Bergman led Physical Description of this Earth. This was a significant treatise on physical geography, but its impact has been likely diminished by the absence of both English and French postings at a period when French and British navigators were quickly adding to understanding of the world. Bergman comprised a very long account of nutritional supplements, and that he shortly became actively interested in mineralogy and chemistry.
Wallerius had lectured on chemistry demonstrations, and Bergman reformed the teaching structures when he succeeded to the seat. Since he thought in applying chemistry to mining and business, he supplied two screens of minerals, one organized according to chemical composition and one according to geographic distribution, and also an exhibition of models of industrial gear. He taught his pupils, who arrived from several nations, not theoretical chemistry but also new experimental procedures, particularly in mineral evaluation.
The blowpipe was utilized by Swedish analysts as early as the 1740's. He also recorded the responses of minerals together with the 3 fluxes, wrapped in hollow charcoal affirms or silver or golden spoons, and he differentiated between the oxidizing and reducing flames, since they're now called. The blowpipe was an superb tool for qualitative investigation, but he realized that it was unsuitable for qualitative analysis, a branch of their artwork he significantly enhanced by wet techniques.
Bergman released investigations of several individual minerals and mineral waters, and dissertations on the majority of the metals. These often contained new qualitative and qualitative effects, but three general treatises were important. Dissolved gases, generally carbon dioxide or hydrogen sulfide, were pushed out by heating and have been collected over germ. The resulting solutions were all treated about twenty-five reagents, but not in any specific order. Many were known, but Bergman introduced significant new reagents, especially oxalic acid for a test for lime, and barium chloride for sulfate. His strategy represented an improvement from the investigation of mineral waters, however it was soon enhanced, especially by A. F. de Fourcroy, who in 1781 pointed out the desirability of working with the reagents in a systematic sequence and discovered that many were redundant. But, Bergman decided the compositions of several significant mineral waters, also by 1773 he successfully ready artificial seltzer and Pyrmont seas by dividing the crucial compounds in water packed in carbondioxide, which he called"airborne acid" after discovering its own acid.
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