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Features

Dr. Brown-Sequard's Recent Experiments

The New German Artillery Tactics

An Improved Ash Sifter

An Improved Propeller-Shaft Bearing

An Improved Lock

A Spark Conductor for Locomotives

The Paris Exhibition

An Improved Draughtsman's Protractor

An Improved Pocket Knife

An Improved Ink Eraser

The New U.S.Cruiser Philadelphia

Views on Mt. Hood

Gold Beating

An Improved Feed Water Heater and Condenser

An Improved Floor Beam Connection

Departments

  • Letters

    Correspondence- August 10, 1889

  • Departments

    Business and Personal- August 10, 1889

  • Recently Patented Invention- August 10, 1889

  • Notes and Queries- August 10, 1889

  • Index of Inventions- August 10, 1889

  • To Inventors- August 10, 1889

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August 10, 1889

Think Outside the Gift Box