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Features

A Century of Progress in the United States

By Edward W. Byrn

Ritchie's Telautograph

Some Automobiles Exhibited at the Paris Exposition

A Rapid Method of Vulcanizing Rubber

Unites States Naval Proving Ground, Indian Head

By Jos. Strauss

The Halford Gradient Railway

Logging in the Northwest

By D. A. Willey

Some Curious Sculpins

By Charles Frederick Holder

VI. A Metallic Thermometer

By George M. Hopkins

Some Recently Patented Novelties

To Inventors

Departments

  • Departments

    New Books, Etc. - December 29, 1900

  • Recently Patented Intentions - December 29, 1900

  • Business and Personal - December 29, 1900

  • Index of Inventions - December 29, 1900

  • Notes and Queries - December 29, 1900

  • Patents - December 29, 1900

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December 29, 1900