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The Coal Resources of Japan

Precious Stones in 1904

By George F. Kunz

Granite Quarries

Analogies between Light and Electric Waves.—Braun's Experiments

Gold Molecules in the Solid State

By G. T. Beilby

A New Gas Burner

Early Ethnology

A New Railway Bumping Post

Benjamin Franklin, the First American Heating and Ventilating Engineer

The Safeguarding of Life in Theaters

American Shipbuilding

Degreasing Wool

Simple Photographic and Photo-Micro-Graphic Apparatus

A Modern Testing Plant for Gasoline Automobile Motors

By Alfred Gradenwitz

Problem of a Broken Axle

Specifications of Material used in High-Speed Automobile and Motor-Boat Engines

By Thomas J. Fay

Steel for Reinforced Concrete

By A. L. Johnson

Transmission of Electrical Energy from Sweden to Denmark

Electrical Conductivity and Reflecting Power of Carbon

Contemporary Electrical Science

Venomous Animals

Wood Distillation

Food in its Relation to Teeth, their Sockets and Adjacent Structures

By A. W. Harlan

Electrical Notes

Science Notes

Engineering Notes

Trade Notes and Formulæ


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    March 03, 1906

    20% Sitewide for President's Day