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A New Light Draft Propeller

Professor Huxley's Mistake

The Advantages of Cheap Patents

The Spiritual Slate

The Inter-Mercurial Planet

A New Fodder Fork

Improved Locomotive and Car Steam Brake

Improved Nail Extractor

Singular Accident to a Trout

The Black Knot

Turbine Water Wheels

By S. W. Robinson

The Latest News From the Sun

Rubber Overshoe Making at the Centennial

A Theory of the Ball Puzzle

The "Model" Scroll Saw

The Blessings of Gunpowder

Seasonal Behavior of Plants

The Russian System of Trade Education

The Processes of Steel Manufacture

Comparative Cost of Illumination

The Profitableness of Irrigation

New Household Inventions - October 21, 1876

Recent American and Foreign Patents - October 21, 1876

New Mechanical and Engineering Inventions - October 21, 1876

New Miscellaneous Inventions - October 21, 1876

New Woodworking and House and Carriage Building Inventions - October 21, 1876

Communications Received - October 21, 1876

The Validity of Patents - October 21, 1876


  • Letters

    Correspondence - October 21, 1876

  • Recommended

    New Books and Publications - October 21, 1876

  • Departments

    Business and Personal - October 21, 1876

  • Index of Inventions - October 21, 1876

  • Notes and Queries - October 21, 1876

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