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Shall the Panama Canal Be Free? Success in Accident Prevention and more

Recent Developments in French Dirigibles

"The Construction of the Lieutenant Selle de Beauchamp"

By C. Dienstbach

A Difficult Engineering Feat Carried Out in Paris

Piercing the Montmartre Hill for a Subway

Rules Governing the Competition for the $15,000 Flying Machine Prize Offered

By Mr. Edwin Gould

The First Trans-continental Rail way in South America, from the Atlantic to the Pacific

The Transandine Railway and Tunnel

By F. C. Coleman

The Third Award of the Scientific American Medal for the Conservation of Human Life and Limb

Curiosities of Science and Invention

An Audible Timer

By C. S. Bourne

An Improved Laboratory Label

By William P. Munger

The Laboratory, An Easily Made Vacuum Apparatus

Some Suggestions for Home Experiment

By Russell Edson


  • Departments

    Correspondence - January 27, 1912

  • Recently Patented Inventions - January 27, 1912

  • Notes and Queries - January 27, 1912

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