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Features

Murphy's Bicycle Ride a Hint to the Railroads

Schenectady Locomotives for England

Extreme Range of Sixteen-Inch Gun

Corrosion of Alloys in Sea Water

Electric Heating

By Altan D. Adams

Growth in Speed and Size of Ocean Liners

The Latest Liquid Air Plant

By W. C. Peckham

An Improved Sash-Balance

A New Type of Rotary Engine

An Apparatus for Darning Stockings

The Reconstructed Cruiser

Our Latest Battleship, the

Life Buoy Designed by Rear-Admiral Hichborn

A Mile in Less than a Minute on a Bicycle

Universal Automatic Screw Machine

To Inventors - July 15, 1899

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    New Books, Etc. - July 15, 1899

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    Recently Patented Inventions - July 15, 1899

  • Index of Inventions - July 15, 1899

  • Business and Personal - July 15, 1899

  • Notes and Queries - July 15, 1899

  • Patents - July 15, 1899

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July 15, 1899

Complex Causes. Alternative Solutions.