Proceedings of the American Academy of Arts and Sciences, Volumen2Metcalf and Company, 1852 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
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Página 75
... quantity of lead in water that has been standing a given length of time in leaden pipes , or upon the absolute freedom from corrosion of pipes long in use . For if a certain quantity , more or less , has found its way into the human ...
... quantity of lead in water that has been standing a given length of time in leaden pipes , or upon the absolute freedom from corrosion of pipes long in use . For if a certain quantity , more or less , has found its way into the human ...
Página 76
... quantity of lead in solution , that a white film ( of carbonate and hydrate of lead ) rose to the surface of this water , after being drawn a short time . family had ordinarily been at rest twelve hours in the 76 PROCEEDINGS OF THE ...
... quantity of lead in solution , that a white film ( of carbonate and hydrate of lead ) rose to the surface of this water , after being drawn a short time . family had ordinarily been at rest twelve hours in the 76 PROCEEDINGS OF THE ...
Página 77
... quantity equalled about 0.0001gr . , or for a gallon 0.00045gr . " Determination of Lead in the Schuylkill Water of Philadelphia . -According to Professor Booth , 100 apothecaries ' ounces , after ex- posure 36 hours in leaden pipe , a ...
... quantity equalled about 0.0001gr . , or for a gallon 0.00045gr . " Determination of Lead in the Schuylkill Water of Philadelphia . -According to Professor Booth , 100 apothecaries ' ounces , after ex- posure 36 hours in leaden pipe , a ...
Página 78
... quantity , and the influence its known pres- ence in a water should have , may be over - estimated . 500 cubic centimetres contain 0.00002gr . 1000 66 66 66 0.00004gr . " Wiesbaden water contains of arsenious acid , in 1000cc ...
... quantity , and the influence its known pres- ence in a water should have , may be over - estimated . 500 cubic centimetres contain 0.00002gr . 1000 66 66 66 0.00004gr . " Wiesbaden water contains of arsenious acid , in 1000cc ...
Página 79
... quantity of lead that will be dissolved in Cochituate water in actual service will , for all practical purposes , be of no moment . " The recognition and quantitative determination of very minute quantities are not always without ...
... quantity of lead that will be dissolved in Cochituate water in actual service will , for all practical purposes , be of no moment . " The recognition and quantitative determination of very minute quantities are not always without ...
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