Publisher's Synopsis
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 ?owers 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.
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