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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

Selected Formulæ

Engineering Notes

Ancient Engineering

By J. Elfreth Watkins

The Zinc Industry

The New Station in Dresden

Apparatus for Consuming Smoke.—I

Germany's Assistance in Furthering Trade

Tuberculosis in Animals

Voluntary Effort plus Inspection of Meat and Milk

By W. Hunting

The Physics of Smell

Sound and the Atomic Constitution of Gases

Instruments for Measuring Small Torsional Strains

By E. G. Coker

How Dynamos are Sold

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

Lyddite—The New Explosive

Electric Street Railroads in England

Geographic Distribution of the Vertebrata

Patents!

Departments

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    February 25, 1899

    Think Outside the Gift Box