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Manufacture of Radium Salts

Six Aviation Engines

The Alexander Prize for Aeronautic Motors

The Mechanical Theory of Nature

Relations of Modern Physics to the Mechanical Interpretation of Nature

By Max Planck

The Telephone and the Railroad

Train Dispatching by Telephone

By G. K. Heyer

Experiments in Diamond Making

A Horseshoe Rolling Machine

A Substitute for Hammer and the Berlin Correspondent of the Scientific American

The Physiology of Light.--I

Some of its Ocular Effects

By Charles Proteus Steinmetz

Rubber Plants on the Ivory Coast

The Great River of the Northwest

A Stream with a Future

By Katherine Louise Smith

To the Pole by Airship

Polar Exploration According to Zeppelin

By Bruno Sergert

Up-To-Date Toys

New Inventions in Playthings

Surface Tension and Vital Phenomena

The Planets and their Motions

Progression and Retrogression

The Markings of Mars

A New Map of the World

The International Millionth Map

By Bailey Willis

Science Notes

Electrical Notes


  • Letters

    Correspondence- December 17, 1910

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