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Scientific American, Vol. 52, No. 26 (1885) (1885)

leaf 5

An illustration from Scientific American, Vol. 52, No. 26 (1885), 1885, leaf 5
should not wish to employ OO or at making the chloride insoluble, but are yet on trial. him. When the water-works in my house get out of SIMPLE PUSH BUTTON FOR ELECTRIC BELLS, This process has been largely and successfully intro- order, I want a theoretical plumber as well as one who Mr. Gosonko,… … tion, hydraulic pressure, or a vacuum, when well done, when the forts of Cronstadt thundered forth a salute, using a solution of 1 pound of sulphate to 100 of water, and announced thus that the ceremony of opening the has proved fairly successful. canal had been performed. bells. A circular piece…

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