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Raising Carrier Pigeons

The High-Speed Motor-Boat Model

On the Working of Combined Coherers

Fleets in the Far East--An English Review of the Position of Russia and Japan

By Archibald S. Hurd

The Adam-Boudin Globular Boat

Rotary Valve for Sawmills

Valve for Control of Hydraulic Elevators

The Largest Photograph in the World


Samuel Pierpont Langley

The Modern Torpedo

Jupiter and his Surface Currents

By T. E. R. Phillips

Russia's Losses in the First Week of the War

The “Scooter”


  • Departments

    The Heavens in March - March 5, 1904

  • Correspondence - March 5, 1904

  • Recently Patented Inventions - March 5, 1904

  • New Books, Etc. - March 5, 1904

  • Business and Personal Wants - March 5, 1904

  • Notes and Queries - March 5, 1904

  • Index of Inventions - March 5, 1904

  • Patents - March 5, 1904

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