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Features

An American Railway in China

A Commercial Need

Automobile Motors

Average Life of an Iron or Steel Bridge

Firing High Explosives

Activity of American Consuls

British Patents in 1898

Liquid Air in Medicine and Surgery

A Prize for a Life-Saving Appliance

Steel Dredges for New York Harbor

An Improved Flue-Stopper

A New Wagon-Tongue Support

An Improved Turbine Water-Wheel

Wurdemann's Dividing Engine

By H. P. Sanders

Conservation of Energy in the Human Body

The Pearl-Button Industry of the Mississippi River

By Hugh M. Smith

The Submarine Vessel "La France"

Three-Pounder Semi-Automatic Gun

A Subterranean Industrial Plant

Electric Heating in a Carmelite Hospice

Departments

  • Letters

    Correspondence - August 5, 1899

  • Recommended

    New Books, Etc - August 5, 1899

  • Departments

    Recently Patented Inventions - August 5, 1899

  • Index of Inventions - August 5, 1899

  • Business and Personal - August 5, 1899

  • Notes and Queries - August 5, 1899

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