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Torpedo Tubes But No Torpedoes, Another Call for the Fireproof Stairway and more

Some Recent Improvements in the use of the Electric Furnace

Novel Uses for the Electric Current in Industry

A Statue from the Land of Semiramis, Fire Waste at the Conservation Congress

By Edgar J. Banks

Fighting in the Air, What are the Ten Greatest Inventions of Our Time, and Why and more

By Carl Dienstbach

The Electric Production of Steel

From the Early Experiments of Siemens to the Thirty-ton Furnace of To-day

Curious Exotic Fishes

By Jacques Boyer

Dead Matter That Seems Alive

Synthetic Ideas About Life

By Benjamin C. Gruenberg

The Airman and the Weather

Aeronautic Meteorology: A New Branch of Applied Science

By Charles Fitzhugh Talman

Device for Detecting Flight of Mosquitoes

By L. E. Haskell

Navy to Determine Longitude by Wireless; also Speed of Hertzian Waves, The Current Supplement

By Louis E. Browne


  • Letters

    Correspondance - August 2, 1913

  • Recommended

    New Books, Etc. - August 2, 1913

  • Departments

    The Heavens in August 1913

  • Inventions New and Interesting - August 2, 1913

  • Recently Patented Inventions - August 2, 1913

  • Notes and Queries - August 2, 1913

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