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Features

Bids for 16 1/2-Knot Cruisers Accepted

Railroads in Asia

Wireless Telegraphy between Balloons

Report of the Bureau of Ordnance - November 25, 1899

Industrial Invasion of Great Britain

The Meteor Display - November 25, 1899

Meeting of the National Academy of Sciences - November 25, 1899

By William H. Hale

A Discussion of the Superimposed Turret for Warships

Methods of Revolving the Optical Apparatus for Lighthouses

By D. P. Heap

New Letter-Box Indicator

Progress of the Paris Exposition of 1900

American Armor Plate for a Russian Battleship

The Gypsy Moth

Long-Scale Measuring Instruments

"Don Coyote"

By Chas. Fredk. Holder

Hamilton Young Castner

By Marcus Benjamin

A Simple Slide-Valve for Steam-Engines

An Improved Branding Instrument

To Inventors

Departments

  • Departments

    Business and Personal - November 25, 1899

  • Recently Patented Inventions - November 25, 1899

  • Index of Inventions - November 25, 1899

  • Notes and Queries - November 25, 1899

  • Patents - November 25, 1899

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Science or SciFi?

Science or SciFi?

Vanishing Particles. Spooky Action.