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The New British Cruiser “Natal.”

Characteristics of some Power Gases and their Treatment

By L. L. Brewer

The Rotary Gas Engine

Novelties of the Paris Automobile Show

By the Paris Correspondent of Scientific American.

The Sterilization of Milk

Electric Cooking

By Day Allen Willey

The Story of a Long-Distance Touring Trip in an Electric Automobile

The Art of Cutting Metals

The Gain from the Slide Rule Greatest of All

By Fred W. Taylor

Scientific Aspects of Luther Burbank's Work

By Vernon L. Kellogg

Brittleness of Mild Steel

The Comparative Economy of Various Methods of Illumination


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