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Features

The Problem of the Sacramento River

By H. C. Crafts

Messier

An Early French Astronomer

By J. E. Gore

Some Simple New Inventions

Suggestions of Many Kinds

“Stellite,” A New Alloy

A Remarkable Metal

By Elwood Haynes

Concrete Corncrib and Granary Floors

Bronzing

Treatment before Bronzing and during the Bronzing Process

The Como Electric System

Telephone Whistle Alarm

By R. O. Warren

New Methods for Generating Hydrogen for Balloons

Powerful Light Motors for Aeroplanes

New Wolseley Engines

By H. J. Shepstone

Treasure Recovery from the Deep

Exploits of the Diver

Mars during the Recent Opposition

An Uneventful Astronomical Event

By W. E. Rolston

Field Work in Botany

Practice and Theory of Aviation.—V

The Leading Aeroplanes

By Grover Cleveland Loening

A Radium Factory

Physiological Effects of Altitude

A New Field for Investigation

By Crouzon

Aeroplanes in Paris.—I

The French Salon

Inks and Forgery

Engineering Notes

Science Notes

Trade Notes and Formulæ

Departments

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    November 19, 1910

    Think Outside the Gift Box