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    New Cab

    Could a Hostile Fleet Bombard New York ?

    Science Teaching in Schools

    A Chance for Inventors.--The $5,000 Car

    Traveling Flies

    The De Bay Propeller

    French Pill Printing Machine

    New Portable Oven

    Hens' Wire Nests

    The First Inventor of the Steam Gauge

    New Beer Faucet

    The American Science Association

    Engineering Inventions

    Double Treadle Attachment

    Miscellaneous Inventions

    Improvement in Billiard Tables

    Seals

    By A. W. Roberts

    Benzole

    Mechanical Inventions

    Count Louis Francois De Pourtales

    Reasonable Diligence

    The Location of the Lick Observatory

    The Causes of Terrestrial Magnetism

    Departments

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      Correspondence

    • Recent Inventions

    • Business and Personal

    • Index of Inventions

    • Notes and Queries

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    September 25, 1880

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