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    Features

    Improved Anchor Tripper, Interesting Objects in the Exhibition

    Notes on Military and Naval Affairs

    The Handsomest Fire Engine Ever Built

    Petroleum -- Experiment to Determine its Comparative Illuminating Power with Gas and Candles

    Polytechnic Association of the American Institute

    Valuable Receipts

    Recent Foreign Inventions - July 26, 1862

    Coating the Hulls of Iron Ships

    The True Remedy for the Scarcity of Change

    Iron-Clad Frigates--Bending Their Armor Plates

    Experiments with Working Steam Expansively and with Condensers

    The London Exhibition

    Interesting Reminiscences

    Patent Claims - July 26, 1862

    Issued,From The United States Patent Office

    Recent American Inventions - July 26, 1862

    To Our Readers - July 26, 1862

    Departments

    • Letters

      Correspondence - July 26, 1862

    • Departments

      Notes and Queries - July 26, 1862

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    July 26, 1862

    See the World from a Different Perspective

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