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Features

The Fifth Award of the Scientific American Medal, The Decline of the United States Navy and more

Inspecting Track Scales for the United States Government

New Test Car and Equipment of the National Bureau of Standards

By Herbert T. Wade

A Fort that Travels on Wheels

Schneider Mobile Batteries for Coast Defense

Flying for Altitude Records, An Object Lesson in Road Maintenance and more

By C. Dienstbach

Obituary, The Current Supplement

By Henry E. Mead

Studying Ripening Bananas with the Respiration Calorimeter

Atlantic Steamships--A Retrospect

Thirteen Years' Development of the Transatlantic Liner

By J. Bernard Walker

Departments

  • How many Stars are there in the Milky Way?

  • Letters

    Correspondence - December 20, 1913

  • Recommended

    New Books, Etc. - December 20, 1913

  • Departments

    Inventions New and Interesting - December 20, 1913

  • Recently Patented Inventions - December 20, 1913

  • Notes and Queries - December 20, 1913

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December 20, 1913

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