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Three and a Half Years of Aerial Warfare, Can England be Invaded?, and more

Where England Gets her Women Workers

The Factory School Which Promises to Supply the Skilled Labor of the Future

The Advantages and Increasing Use of Pulverized Coal

A Form of Fuel Whose Present Annual Consumption is 10,000 Tons

Strategic Moves of the War, May 28th, 1918

The battle lines in France and Flanders

The Airplane Propeller, The Latest North Sea Mine Field

Some of the Problems the Propeller Presents, and How They Are Attacked
Various British mine fields including the latest between Norway and Scotland

By C. H. Claudy

Behind the Scenes of an Exposition

Activities at the New York International Exposition Before Opening the Doors

By Austin C. Lescarboura

African Sudan Grass--The Emergency War Forage Crop

By Lemuel L. De Bra

World Markets for American Manufactures- June 8, 1918

A department devoted to the extension of American trade in foreign lands

By William W. Sniffin

Frozen Fish as Food Supply, Pitcairn Island Shipbuilding, and more

An Electric Furnace for Brass

An Engineer's View of the Liberty Engine and the Airplane Program, Soldering by the Schoop Process, and more

By Charles F. Kettering
President of the Society of Automotive Engineers

By Charles F. Kettering

To Replace German Goods with American Products


  • Departments

    Inventions New and Interesting- June 8, 1918

  • Recently Patented Inventions- June 8, 1918

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