Excerpt from A Study of Hydrogen Sulphide Production by Bacteria and Its Significance in the Sanitary Examination of Water: A Thesis Presented to the Faculty of the Graduate School of Cornell University of the Degree of Doctor of Philosophy The first record we find of hydrogen sulphide production by bacteria is in 1877 when M. U. Crayonl found this gas produced in eggs by micro-organisms, proving its presence by means of the black color Of lead sulphide produced when the gas was brought in contact with lead acetate. Two ...
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Excerpt from A Study of Hydrogen Sulphide Production by Bacteria and Its Significance in the Sanitary Examination of Water: A Thesis Presented to the Faculty of the Graduate School of Cornell University of the Degree of Doctor of Philosophy The first record we find of hydrogen sulphide production by bacteria is in 1877 when M. U. Crayonl found this gas produced in eggs by micro-organisms, proving its presence by means of the black color Of lead sulphide produced when the gas was brought in contact with lead acetate. Two years later, in 1879, P. Miquel2 announced the finding of an organism in sewage, filthy water and drinking water, having the power of changing free and combined sulphur to hydrogen sulphide. In 1882, J. Boehm' noted the production Of hydrogen sulphide from well water and flowers of sulphur in the absence of air. He found that distilled water was not good to use in place 'of well water and claimed that it was the chalk and gypsum in the well water which favored the production of the hydrogen sulphide. In the following year, F. Fischer5 found 2 5% Of hydrogen sulphide in the Paris sewers. In 1884, C. Richet6 worked on the prohibiting power mercuric chloride, zinc chloride, cadmium chloride, copper chlo ride, ferric chloride, and nickel chloride on hydrogen sulphide production, using a medium consisting of sea water and. I% peptone, and inoculating with urine. In 1886, hoppe-seyler8 claimed to have Obtained hydrogen sulphide from calcium sulphate by bacterial action. The amount of this gas Obtained was measured by means Of iodine. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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