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Features

Progress of Dynamite Guns

New Conference of the International Industrial Union

Smokeless Gunpowder

An Improved Curtain Fixture

An Improved Lister and Drill

An Improved Sensitive Drill

An Improved Coupling Link

The Harlem River Improvement and Ship Canal

Bending and Embossing Sheet Metal

Sending Pictures by Telegraph

An Improved Mill Boot or Pestle

Departments

  • From the Editor

    To Inventors- March 22, 1890

  • Letters

    Correspondence- March 22, 1890

  • Recommended

    New Books and Publications- March 22, 1890

  • Departments

    Notes & Queries- March 22, 1890

  • Business and Personal- March 22, 1890

  • Recently Patented Inventions- March 22, 1890

  • Index of Inventions- March 22, 1890

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