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    Features

    The Control of the Mississippi River, What the Rich Man Might Do for the Scholar and more

    Six Wheeled Omnibus

    By Stanley Petman

    "The Snow of the Penitents"

    By C. F. Talman

    Stereoscopic Views of Lightning

    By the Berlin Correspondent of the Scientific American

    Compressed Air as a Protection for Battleships, Revelations of the Boston Automobile Show and more

    By R. G. Skerrett

    Measuring the Flow of a Stream

    How Water Powers Are Accurately Calculated

    By Richard Hamilton Byrd

    Plastic Art of Prehistoric Man

    Clay Figures Modeled by an Artist of Twenty Thousand Years Ago

    A Direct Current Motor from a Telephone Ringer

    By Guy Hubbard

    Goniometer for Microscopes

    By C. C. Kiplinger

    A New Type of Water Rheostat, The Effect of Static Electricity on Water

    By J. N. Clarke

    Gasoline and its Substitutes

    A Great Problem and its Solution

    The Chemistry of a Soldering Flux

    Departments

    • Letters

      Correspondence - March 22, 1913

    • Departments

      Inventions New and Interesting - March 22, 1913

    • Recently Patented Inventions - March 22, 1913

    • Notes and Queries - March 22, 1913

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    March 22, 1913