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    Features

    The Hudson River Bridge at Troy, N. Y

    Publishers' Card

    The Water Gas Delusion Again

    The Great International Exposition

    Curious Poison Stories

    The Source of Volcanic Action

    The Meeting of the Public Health Association

    Mein's Patent Governor

    Working Steep Gradients by Locomotives

    Moore's Pulley Block

    Meigs' Improved Dioptric Light

    The HolbrooK Patent Blind Hinge

    The Emission of Carbonic Acid from Roots

    Powell's Improved Burglar Alarm

    Pedden's Improved Cow Tail Holder

    Le Coentre's Sounding Apparatus

    Improved Sadiron

    The Centennial Combination Culinary Apparatus

    Ironclad Vessels

    Astronomical Notes - December 4, 1875

    Miscellaneous Useful Inventions - December 4, 1875

    Recent American and Foreign Inventions - December 4, 1875

    New Agricultural Inventions

    New Woodwork and House and Carriage Building Inventions

    New Mechanical and Engineering Inventions - December 4, 1875

    New Household Articles - December 4, 1875

    New Chemical and Miscellaneous Inventions - December 4, 1875

    Communications Received - December 4, 1875

    Departments

    • Letters

      Correspondence - December 4, 1875

    • Recommended

      New Books and Publications - December 4, 1875

    • Departments

      Business and Personal - December 4, 1875

    • Index of Inventions - December 4, 1875

    • Notes and Queries - December 4, 1875

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    December 04, 1875

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