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    Features

    The Cash Recording Machine

    A Patent Office Court

    The Annual Report of the Commissioner of Patents

    “That is Near Enough”

    The Shop Clock

    The Electric Light in Photography

    The Bullion Product of 1877

    Telegraphing without Wires

    Dangerous Smoke and Drink

    Color-Blindness in its Relations to the Safety of the Traveling Public

    New Adjustable Swivel Hanger

    Shaw's Improved Exhaust Nozzle

    Appliances for Supporting Life in Irrespirable Media

    Communications

    Wise's Ice Cream Beater

    An Improved Hoisting Machine

    The Thompson Wooden Spring for Vehicles

    The India Rubber Tree

    The Codling Moth

    M. Henri Giffard's New Apparatus for the Production of Hydrogen in Large Quantities

    Prevention of Gaseous Emanations from Drains and Sewers

    Wants and Business Inquiries

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      Business and Personal

    • Notes and Queries

    • Index of Inventions

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    February 16, 1878

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