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Features

Position of the Planets in May

Delay in Granting Applications for Patents

Removal of Aerial Electric Wires in New York

The Berrie Paving Block

An Improved Railroad Snow Plow

Straub's Plan for a Sub-River Tunnel

An Improved Bake Pan

An Improved Roller Stove Foot

An Improved Oven Thermometer

An Improved Lightning Conductor for Fences

An Improved Gate Fastening

An Improved Building Block

An Improved Hydrocarbon Burner

Improvement of the River Front of New York City

Remarkable Locomotive Explosion in Norway

Experiments in Magnetism

By Geo. M. Hopkins

The Twin Palms and Ancient Well of Los Angeles

Mercurial Jet Siphon

By T. O'Conor Sloane

To Inventors- April 27, 1889

Departments

  • Recommended

    New Books and Publications- April 27, 1889

  • Departments

    Notes and Queries- April 27, 1889

  • Recently Patented Inventions- April 27, 1889

  • Business and Personal- April 27, 1889

  • Index of Inventions- April 27, 1889

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April 27, 1889

Think Outside the Gift Box