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The First Super-Dreadnought of the U. S. Navy

The "Texas" Armed with Ten 14-inch Guns, makes Twenty-two Knots

The Khedive's State Train

A Benzol-Electric Train for the Governor of Egypt

By F. C. Coleman

The Profile of the Sun

How Invisible Solar Prominences are Studied by means of the Spectroheliograph

By Frederick Slocum

The Naval Airship, Waste From Desks Goes Into Brushes and more

By Carl Dienstbach

Photography By Invisible Light

Things we should see if our eyes were Sensitive to ultra-violet and infrared rays

By R. W. Wood

A Disease of Old Leaden Art Objects

How Corrosion may be Retarded by a Protective Coating

By Jacques Boyer

Alfred Russel Wallace

Co-Founder, with Darwin, of the Modern Theory of Evolution

By Benjamin C. Gruenberg


  • Letters

    Correspondence - November 15, 1913

  • Departments

    Inventions New and Interesting - November 15, 1913

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