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Why not a Good Roads Laboratory, Rational Street Lighting, A Battleship Fleet in Each Ocean

Engineering, Electricity, Science- April 30, 1910

A Railway School for Farmers

By H. A. Crafts

A Reaper Boat

The Elevator Installation of the Metropolitan Life Tower, An Ingenious Way of Examining the Contents of the Duodenum

By Herbert T. Wade

Halley's Comet.--A Model of its Orbit

By James K. Lynch

The Motor-Boat Races at Monaco

The Manufacture of Celluloid

By Jacques Boyer

Telescope Lenses and How to Test Them

By S. A. Mitchell

A Small Electric Furnace

By A. E. Parkins

Some Extraordinary Densities

By Gustave Michaud

Making Milk Artificially

By A. J. Jarman


  • Letters

    Correspondence- April 30, 1910

  • Recommended

    New Books, Etc.- April 30, 1910

  • Departments

    Index of Inventions- April 30, 1910

  • Recently Patented Inventions- April 30, 1910

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April 30, 1910

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