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A Ridiculous Proposal, The "America" Cup Contest, and more

Moving Pictures Without a Screen

A Remarkable Development in Kinematography

Drydocking in Canal Locks, The Problem of Three Bodies Solved, and more

By C. W. Fisher

Powdered Coal for Fuel

Burning Coal Dust in Jets Like Oil

By Harry N. Holmes

The Taxicab Service of New York City

By Harry Chapin Plummer

Aeroplane Lamps

A Light that Shows "Port" and "Starboard" and Also Throws White Beams Forward and to the Rear

By Alfred Gradenwitz

A Smoke and Fume Monitor

By W. W. Strong

Possibilities in Brush Invention, A Simple and Convenient Fish Rod

By H. M. Baxter

The Problem of Our Navy—April 18, 1914

VIII.—Mobilization and a Naval Reserve


  • Letters

    Correspondence-April 18, 1914

  • Recommended

    New Books, Etc.-April 18, 1914

  • Departments

    Inventions New and Interesting-April 18, 1914

  • Notes and Queries-April 18, 1914

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