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Analyzing the Human Singing Voice, The All-steel Aeroplane, and more

Some Interesting Automobile Novelties

A Funeral Motor Car

Lighthouses for the Aerial Navigator

Guiding the Airman at Night

By Alfred Gradenwitz

Has the Fighting Dirigible Airship Arrived?

By Carl Dienstbach

Wit and Humor Cannot Be Appreciated Without Muscular Movements, The Flight of the House Fly, and more

By Johns Hopkins and Leonard Keene Hirshberg

Interesting Features of Cup-defender Construction

Details of Resolute, Vanitie and Defiance

Fire Protection on Ocean Liners

By Alfred Gradenwitz

Have Plants an Unknown Sense?

Some Curious Instances Which Seem to Indicate That the Tendrils and Roots of Plants Have a Mysterious Power of Feeling Objects at a Distance

By S. Leonard Bastin

The Electrical Industry and the Young Man

What Electricity Might Dofor Him-What He Might Do for Electricity-A little Article about His Work in Life

By James H. Collins

A New German Life-saving Costume


  • Letters

    Correspondence- May 16, 1914

  • Departments

    Inventions New and Interesting- May 16, 1914

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