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    Features

    A New Iron-Clad Turret Ship

    Improved Horse Rake, The Atlantic Cable Again

    The London Exhibition

    Jacobs's Mode of Securing Chimneys to Lamps

    Adamas--Soapstone

    A Safe Gunpowder

    Petroleum for Fuel

    Secretary Welles and Our Iron-Clad Navy

    Notes on Military and Naval Affairs

    Meerschaum

    The Patent Law Amendment

    Our London Correspondence

    Hints to Our Subscribers

    What We Ought to do in Relation to Iron-Plated Ships

    Patent Law Amendments

    Arm the Mississippi Forts

    The End of our Volume

    Six Good Reasons Why Every Manufacturer, Mechanic, Inventor and Artizan should become a Patron of the Scientific American

    Recent American Inventions - June 28, 1862

    A Great Silver Ware Manufactory

    Patent Claims - June 28, 1862

    To Our Friends

    To Our Readers

    Departments

    • Letters

      Correspondence - June 28, 1862

    • Departments

      Index - June 28, 1862

    • Notes and Queries - June 28, 1862

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    June 28, 1862