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Features

Suggestion to Develop Niagara Falls' Full Efficiency

By an Overseas Engineer Officer

The German Flying Tank, Closing the North Sea, and more

The German Flying Tank [a heavily armored airplane]
Closing the North Sea [a huge minefield in the North Sea]
Women on the Land [women agricultural workers]

Bullet Versus Armor

The Familiar Contest of the Sea Started Anew Upon the Land
[article on armor being worn and carried by infantrymen]

The second page of the article also contains an article on the convoy system for transatlantic shipping. The cover color image is associated with this article

 

By Edward C. Grossman

The True Story of the Liberty Motor

The Lightest and Most Powerful Airplane Engine Produced on a Quantity Basis

Leveling and Pulverizing as Furrow is Turned

By P. B. Potter

Mechanical Equipment of the Farm- June 1, 1918

Latest developments in agricultural machinery and practical suggestions for the farmer

By G. W. McCuen and Harry C. Ramsower

A Tale of a Trailer

By R. B. Alexander

The Longest Possible Bridge Spans

Including Description of the Proposed Hudson River and San Francisco Bay Structures

By Charles Evan Fowler

Departments

  • Letters

    Correspondence- June 1, 1918

  • Recommended

    New Books, Etc.- June 1, 1918

  • Departments

    The Heavens in June, 1918

  • Recently Patented Inventions- June 1, 1918

  • Notes and Queries- June 1, 1918

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June 01, 1918COVER IMAGE: "A FLEET OF MERCHANTMEN UNDER CONVOY AS SEEN FROM A TOWED BALLOON" (SEE PAGE 499)

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