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Retrospect of the Year 1899

Looking back over the year that has just drawn to a close, the American who has the interests of his country deeply at heart will find abundant cause for satisfaction. It has been a record of unqualified prosperity...

Landslide at Amalfi

The Chester Metallic Railway Tie

Mechanical Ore Unloader

By Waldon Fawcett

The Explosive Side of Acetylene

By Frederick H. M'gahie

New York Zoological Park

Motor-Wheel for Vehicles

To Inventors - January 6, 1900


  • Departments

    Correspondence - January 6, 1900

  • Index of Inventions - January 6, 1900

  • Notes and Queries - January 6, 1900

  • Recently Patented Inventions - January 6, 1900

  • Business and Personal - January 6, 1900

  • New Books, Etc. - January 6, 1900

  • Patents - January 6, 1900

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Self-Awareness or Illusion?

Self-Awareness or Illusion?

Solving the “Hard Problem”