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Features

Laying of the Keel of the New Battleship “Nebraska” at the Works of Moran Bros. Company, Seattle, Wash., July 4, 1902

Gray Hair and Emotional States

Water Power use in Utah

Compensation for this Age of Hustling

Experiments on Railway and Road Bridges

The Meray-Rozar Electrotypographic Machine

Tobacco Traditions

The International Exhibition of Alcohol Motors

The Recent “Belleisle” Experiment

By Fred. T. Jane

Foundry School Needed

Improvement in the Preparation of Match Pastes with Sesquisulphides

By M. Blanc

The Physiological Effects of Diminished Air Pressure

By E. G. Dexter

The Color of Water

The Largest Hydro-Electrical Plant in Europe

Contemporary Electrical Science

Researches Concerning Lightning

Psychological Apparatus

Chinese Drugs and Medicinal Plants

By Augustine Henry

The Castelli Coherer

The Harpoon—Foremost among Savage Inventions

By Otis Mason

Trade Notes and Recipes

Trade Suggestions from United States Consuls

Selected Formulæ

Patents!

Departments

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