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Features

The Mechanical Conveying of Coal and Coke—II

Specially Prepared for the Scientific American Supplement by Emile Guarini

Correspondence

The disclosure of a secret, and the application to aerial navigation To the Editor of the Scientific American Supplement:

Siberian Train Service

Some Principles that may be Guides for the Applied Arts

By G. F. Bodley

New Motocycles

The Siemens and Halske Fire Alarms

The Belgian Correspondent of the Scientific American

Practical Recipes for Silvering

Contemporary Electrical Science

The Bleaching Method of Direct Color Photography

By A. Bosch

An Artificial Rain

The Manufacture of Rosin Oil

A Unique Color and Paint Chemical Laboratory

Artificial Silk—A Problem in Chemical Invention

The Present Position of Chemical Physiology

The Present State of the Art of Electro-Culture

By Emile Guarini

Engineering Notes

Trade Notes and Recipes

Electrical Notes

Trade Suggestions from United States Consuls

Selected Formulæ

Departments

  • Departments

    Patents - September 19, 1903

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