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Features

Lhasa and Central Tibet.—II

By G. Ts. Tsybikoff

Mexico to Explore an Ancient Otomite City

The Tantalum Lamp

By W. Von Bolton and O. Feitcrlein

Steam Heating Principles

By Willam J. Baldwin

A Powerful Light-Weight Gasoline Motor for Aeronautical Purposes

The Utilization of Waste Energy

A New Belgian Process of Manufacturing Weldless Chains

By Emile Guarini

Photograph of Electric Spark

Developments in Heavy Electric Traction

Meteorology in the British Empire

By John Eliot

Experimental Electrochemistry

Assistant Professor of Chemistry in the George Washington University, Washington, D. C

By N. Monroe Hopkins

Olympia

The Astronomy of the Old Testament

The Ascent of Water in Trees

Electrical Notes

Engineering Notes

Science Notes

Trade Notes and Recipes

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    March 11, 1905

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