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Announcement of Rules for the Gould-Scientific American $15,000 Prize, Lessons of the Zeppelin Airship Disaster, and more

Electricity- July 9, 1910

Science- July 9, 1910

Engineering- July 9, 1910

A Giant Steam Excavator

By Our English Correspondent

The Two Highest Masonry Bridges in the World

By F. Honore

The Government's Money Laundry

By Thomas D. Gannawy

The Wreck of the "Deutschland"

By Cabl Dienstbach

Rules Governing the Competition for the $15,000 Prize Offered, Wanted: Information about Dishonest Patent Schemes

By Edwin Gould

A Colossal Illuminated Advertising Display

An Animated Scene in White and Colored Lights

Novel Electric Towing Locomotive for Canal Locks

By Herbert Brackett

An Improved Boomerang

By Walter Langford

Magic for Amateurs--I

Coin and Handkerchief Tricks

By W. H. Radcliffe

Electric-Lamp Heating and Cooking Devices

By Frank C. Perkins

Easily Constructed Electric Toaster

By R. H. Cronyn

Carrying Water with the Help of a Hoop

By A. F. Bishop

A Convenient Drawing-Board

By Chauncey W. Nieman

A Cheap Home-Made Roller

By C. A. Umoselle

Holder for Broken Saw Blades

By T. Fagan

The Current Supplement, Guiding Signals for Aeronauts

Departments

  • Letters

    Correspondence- July 9, 1910

  • Recommended

    New Books, Etc.- July 9, 1910

  • Departments

    Recently Patented Inventions- July 9, 1910

  • Notes and Queries- July 9, 1910

  • Index of Inventions- July 9, 1910

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July 09, 1910

See the World from a Different Perspective

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