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    The South Street Bridge, Philadelphia, PA

    Wiggins' Improved Relief and Safety Stop Valve

    The Speaking Telephone in New York

    Prevalent Manias

    Sewage Irrigation on a Small Scale

    Safety Valve Tests

    A New Injector for Steam Boilers

    A New Axe

    Improved Machine for Stamping Leather Goods

    Practical Mechanism

    By Joshua Rose

    A New Fumigator

    Mershon's Improved Rock Drill

    Improved Railroad Joint and Nut Lock

    A Snake-Eating Frog

    A Beautiful Fern

    Decisions of the Courts

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    June 09, 1877

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