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Our Vanishing Export Trade in the Products of American Forests, Industrial Preparedness for War and more

A Coal-Dust Locomotive

By Herbert T. Walker

An Ingenious Gas Turbine Developed in Germany, A Typewriter That Copies with its Own Eye

By Sydney F. Walker

Unit Design in Marine Wireless Telegraphy

By J. Andrew White

Strategic Moves of the War, March 17th, 1916

By Our Military Expert

On the Trail of Villa

Our 2,000-Mile Mexican Border and Its Protection
[The article follows Pancho Villa's attack in New Mexico on March 9, 1916]

The War Game— II

[The cover color image is associated with this article]
Service of Security, on the March and at the Halt

By Lieut Guido von Horvath

Over the Whirlpool by Aerial Cable

Describing an Aerial Scenic Railway Recently Completed at Niagara Falls

By Chas. W. Person


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    Recently Patented Inventions - March 25, 1916

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