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The Armament Question

Trials of Armor Plates

Speed Experiments with Ships' Models

Speed on Canals

The New American War Steamers Dolphin, Atlanta, and Chicago

The New Steel Cruisers

By M. P. Hayes

The New War Ships

The Atlantic and Pacific Ship Railway

Reorganization of the Patent Office

Substitute for Ruby Glass


  • Departments

    Patents - April 12, 1884

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Self-Awareness or Illusion?

Self-Awareness or Illusion?

Solving the “Hard Problem”