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Features

A New System of Reinforced Concrete

What is the Electron Theory?

A Simple and Lucid Explanation

By L. Graetz

Alcohol as Future Fuel

The Power Possibilities of Vegetation

The Glocker-White Turbine Governor

By W. M. White and L. F. Moody

Tacoma's Experience with its Power Plant

Unsinkable and Uncapsizable Ships

The Goulaeff form and System of Construction

By E. E. Goulaeff

The Transverse Strength of Concrete

A New Development in the Art of Indirect Color Photography

By Friedrich Limmer

The First Aerodrome in the World

A Racecourse for Army Flying Machines

Poles for Power Transmission

Their Design and Strength

Nature and Treatment of Alloy Steel

Our Legion Alloys and Their Uses

By John. A. Mathews

Positions of Reference

By F. C. van Dyck

Foreign Aeronautic Motors.–I

Some of the Latest Light-Weight Gasoline Engines for Flying Machines that have been Brought Out Abroad

Detachable and Demountable Rims

The Question of Automobile Tires

By Hermann F. Cuntz

Ancient and Popular Ideas of Comets

Queer Superstitions about Strange Heavenly Bodies

By Irene E. Toye Warner

Electrical Notes

Engineering Notes

Trade Notes and Formulæ

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    February 13, 1909

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