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A Giant Among Mine Hoists, Who Is Delaying Disarmament? and more

Keeping Our Railroads Up to the Mark

Pneumatic Apparatus That Constitutes the Prime Factor in Trunk-Line Maintenance of Way

By Robert G. Skerrett

Canada's Big Oil Strike

By Thomas M. Fraser

Motorizing the Rural Church

By O. R. Geyer

Fuel Conservation Opinions--II

What Leading Consumers of Fuel Have to Say About the Present and the Future

By Austin C. Lescarboura

Farming with Electricity

A Hundred-Thousand Acre Tract That Is Fully Equipped with Modern Machinery

By Ralph Howard

When Oysters Are in Season

How the Raw and the Canned Products Are Prepared for the Markets

By S. R. Winters

Fixed Stars That Are Not Fixed

How Their Motions Are Detected by Making Them Wink at Us

By J. F. Springer

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May 1921

See the World from a Different Perspective

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