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Features

An Army Railroad Howitzer, How Refrigerator Insulation is Made, and more

New Type of Steam Motor Car

Solution of Steam-Car Difficulties by Introduction of Gas-Car Elements

Strategic Moves of the War, December 14th, 1916

By Our Military Expert

The New President of the American Association for the Advancement of Science, Russian Graphite, and more

By Marcus Benjamin

How Waste Paper is Treated to Make New Paper

An Account of Processes and the Difficulties to be Overcome in Removing Printer's Ink

By Thomas J. Keenan

Concrete Cottages from a Catalogue

By F. C. Perkins

Evolution of the Rigid Airship Design

Present Status of Zeppelin Construction

By Baron L. d'Orcy

Departments

  • Departments

    Inventions New and Interesting- December 23, 1916

  • Recently Patented Inventions- December 23, 1916

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December 23, 1916

See the World from a Different Perspective

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