SA Supplements Vol 56 Issue 1446supp

SA Supplements

Volume 56, Issue 1446supp

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Features

The Mechanical Conveying of Coal and Coke—II

Specially Prepared for the Scientific American Supplement by Emile Guarini

Siberian Train Service

Correspondence

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

Some Principles that may be Guides for the Applied Arts

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

A. Bosch

The Manufacture of Rosin Oil

An Artificial Rain

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

Emile Guarini

Electrical Notes

Trade Notes and Recipes

Engineering Notes

Trade Suggestions from United States Consuls

Selected Formulæ

Departments

Patents - September 19, 1903