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The Cod Fisheries of Newfoundland

By Day Allen Willey

The Ancient Ruins of Rhodesia

An Explanation

Strange Facts about the Eucalyptus

Nova Persei

A Plague of Moving Islands

An Interesting Collection of Cambodian Relics

Exploring a River

Mechanical Traction on Tramways

The Stenodactyl, or Stenographic Machine

History of Personal Jewelry

By Cyril Davenport

Non-Skidder for Automobile Tires

The Properties and Applications of Selenium

By William J. Hammer

Lord Kelvin's New Idea about Ether Atoms

By J. G. McPherson


Contemporary Electrical Science

New Traveling Electric Hoists

The David Perret Electric Clock

By Emile Guarini

On Electrons

Part III. Determination of Speed and Electrochemical Equivalent of Cathode Rays

By Oliver Lodge

Trade Suggestions from United States Consuls


Selected Formulæ


  • Departments

    Correspondence - May 30, 1903

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