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The Staggering Cost of Modern Warfare

Front page article on the cost of the war paid by several countries.

By Albert A. Hopkins

Submersible Freighter Versus the Submarine, United States Patents Owned by Germans, and more

Army Uniforms by the Millions

What Fifteen Thousand Uniforms a Day Means in the Way of Labor-Saving Methods and Machinery

Strategic Moves of the War--May 17th, 1917

By Our Military Expert

Military Engineering

What Germany has Learned from Russia About Trenches and Cover

By Albert K. Dawson

What I Can do for My Country

IV. The Mechanic and Skilled Workman

India's War Flower

The mahua or mhowra tree, contains acetone in quantity, useful for munitions.

Our National Waste, Property Losses, and more


  • Letters

    Correspondence- May 26, 1917

  • Departments

    Inventions New and Interesting- May 26, 1917

  • Recently Patented Inventions- May 26, 1917

  • New Books, Etc.- May 26, 1917

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