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Scientific American Magazine Vol 81 Issue 22

Scientific American Magazine

Volume 81, Issue 22

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Features

Bids for 16 1/2-Knot Cruisers Accepted

The Meteor Display - November 25, 1899

Industrial Invasion of Great Britain

Report of the Bureau of Ordnance - November 25, 1899

Wireless Telegraphy between Balloons

Railroads in Asia

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

William H. Hale

A Discussion of the Superimposed Turret for Warships

New Letter-Box Indicator

Methods of Revolving the Optical Apparatus for Lighthouses

D. P. Heap

Progress of the Paris Exposition of 1900

American Armor Plate for a Russian Battleship

The Gypsy Moth

Long-Scale Measuring Instruments

"Don Coyote"

Chas. Fredk. Holder

Hamilton Young Castner

Marcus Benjamin

A Simple Slide-Valve for Steam-Engines

An Improved Branding Instrument

To Inventors

Departments

Notes and Queries - November 25, 1899

Index of Inventions - November 25, 1899

Recently Patented Inventions - November 25, 1899

Business and Personal - November 25, 1899

Patents - November 25, 1899