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New Skyscrapers for Old, Our Navy as a National Insurance, and more

Engineering, Electricity, Science- May 21, 1910

Comet Notes, The Accident to the Zeppelin

The Thorne-Baker Tele-Photographic Apparatus

An Instrument for Transmitting Pictures with and Without Wires

A Phenomenal Oil Gusher

By Charles Carrol Wright

The Manufacture of Twine

By Day Allen Willey

Educating the Farmers by Rail

By H. A. Crafts

Fire Control in the National Forests

Damming the Mississippi

By W. P. Green

The Oceanographic Museum of Monaco

Patent Department- May 21, 1910

Practical Sterilization by Means of Ultra-Violet Rays, A New Process for the Prevention of Coal-Dust Explosions

Colors of Foods


  • Letters

    Correspondence- May 21, 1910

  • Recommended

    New Books, Etc.- May 21, 1910

  • Departments

    Notes and Queries- May 21, 1910

  • Recently Patented Inventions- May 21, 1910

  • Index of Inventions- May 21, 1910

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