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The Nature and Origin of Volcanic Heat

By Elihu Thomson

The Structure of Metals

By J. A. Ewing

Action of Radium Emanation on the Human Body

The Modern Manufacture of Alcohol.—II

The Commercial Production of Alcohol

Dyeing of Animal and Vegetable Fibers with Hydrogen Peroxide

Large Electric and Steam Locomotives

The Possibilities of the High-Speed Railroad

Irrigation in Western Canada

By Lawrence J. Burpee

Industrial Applications of Gypsum.—I

By Robert Grimshaw

Depth Indicator for Torpedo Boats

By the English Correspondent of Scientific American

The Art of Inventing—II

By Edwin J. Prindle

A Novel Wind Shield

By Joseph Eysseric

Brickwork Tests

Lightning Conductors

Science Notes

Contemporary Electrical Science

Engineering Notes


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