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Niagara Falls Again Threatened, Automobile and Aeroplane Records and more

"Ehrlich-Hata 606"

How It was Discovered

American Ideas in British Battleships

The "Monarch"--a Modified "North Dakota"

The Restoration of Documents Charred by Fire

By George A. James

How Automobile Numbers are Concealed

By George Rice

The Beff Electric Tricycle

By Jacques Boyer

Automobile Novelties

New Things in America and Europe

By Frank C. Perkins

The Variable Speed Aeroplane

Some Ingenious Designs

The Seventeen-year Locust or Periodical Cicada

The Two Races and When They Appear

By L. O. Howard

Forests and Water Supply

By Russell L. Dunn

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

By Edwin Gould

The New York Public Library

How the Readers and the Books are Distributed in the New Building

How to Insert Small Screws

By William Grtzinger

The Handy Boatman

By Albert F. Bishop

The Inventor's Department - May 27, 1911

Simple Patent Law; Patent Office News; Inventions New and Interesting


  • Letters

    Correspondence - May 27, 1911

  • Recommended

    New Books, Etc. - May 27, 1911

  • Departments

    Recently Patented Inventions - May 27, 1911

  • Notes and Queries - May 27, 1911

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