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Features

The Fight against Yellow Fever

By A. Dastre

Methods of Creosote analysis

Modern Rivals of the Tower of Babel

Pattern-Making and Molding of Cylinders for Two-Cycle Internal-Combustion Engines

By E. F. Lake

Methods of Astronomical Measurement

Agricultural Problems

Light and Illumination

By Charles P. Steinmetz

The Buried City of Ceylon

The Ethics of Japan

By Baron Kencho Suyematsu

Gold and Silver Production in the United States

By Waldemar Lindgren

A Commercial Graphophone for Recording Dictation

Ella System of Wireless Telephony

By Emile Guarini

Single-Phase Vs. Three-Phase Power Transmission

By Ernest Van Loben Sels

Facts and Interpretations in the Mutation Theory

By A. E. Ortmann

Science Notes

White Ants

Engineering Notes

Departments

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    March 30, 1907

    Think Outside the Gift Box