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    Features

    A Great Pacific Coast Shipbuilding Plant

    A New Scholarship at Sibley College

    Nitric Acid Bacteria

    The Forty-First Annual Meeting of the American Association for the Advancement of Science

    Position of the Planets in July

    A Proposed World's Fair Tower

    An Improvement in Car Couplers

    Prof. Thurston's Arc Lamp Improvement

    A Light and Durable Fence

    A Novel Top

    Photographic Notes- July 2, 1892

    Manufacture of Porous Cups for Electric Batteries

    A Weird Spectacle

    Departments

    • Letters

      Correspondence- July 2, 1892

    • Recommended

      New Books and Publications- July 2, 1892

    • Departments

      Recently Patented Inventions- July 2, 1892

    • Business and Personal- July 2, 1892

    • Index of Inventions- July 2, 1892

    • Notes and Queries- July 2, 1892

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    July 02, 1892

    See the World from a Different Perspective

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