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Features

Restoration of the Temple of Karnak

A Year on Christmas Island

The Plan of the Earth and its Causes

Battle between Ants

The Cunning of Criminal Animals

Electrical Notes

Engineering Notes

Selected Formulæ

The New Station in Dresden

Ancient Engineering

By J. Elfreth Watkins

The Zinc Industry

Apparatus for Consuming Smoke.—I

The Physics of Smell

Germany's Assistance in Furthering Trade

Sound and the Atomic Constitution of Gases

Tuberculosis in Animals

Voluntary Effort plus Inspection of Meat and Milk

By W. Hunting

Instruments for Measuring Small Torsional Strains

By E. G. Coker

Lyddite—The New Explosive

How Dynamos are Sold

The use of Musical Vibrations and Chromatoscopic Figures—A Contribution to the Therapeutics of Emotions

Geographic Distribution of the Vertebrata

Electric Street Railroads in England

Patents!

Departments

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    February 25, 1899