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Test of a New Bridge by means of Elephants, at Bridgeport, Conn.

By H. C. Hovey

Are Townsmen or Countrymen the Healthiest?

Postal Street Cars

Coupling a Dynamo to a Car-Axle

Photographic Notes- January 19, 1889

The Deep Wells of Reading, PA

A Foot-Shield for Pianos, Etc.

Improved Lifting Cage for Mines

Improved Double-Reciprocating Engine

A New Screw Cutting Die

Improved Pulsatory Wool Washing Machine

An Improved Road Grader and Ditcher

An Improved Screw Driver

An Improved Can Opener

The Bartlett Project for a Water Supply for Lower New York

A Boy's Invention

The Great Railway Bridge over the Firth of Forth

St. Louis to be a Seaport

Experiments in Capillary Force

Apparatus for Compounding Rectangular Vibrations

By M. Hopkins

To Inventors- January 19, 1889

Departments

  • Letters

    Correspondence- January 19, 1889

  • Recommended

    New Books and Publications- January 19, 1889

  • Departments

    Business and Personal- January 19, 1889

  • Recently Patented Intentions- January 19, 1889

  • Notes and Queries- January 19, 1889

  • Index of Inventions- January 19, 1889

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January 19, 1889

Help Us Reforest the Mississippi River Valley

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