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Pennsylvania Railroad Terminal Station and Tunnel

An Interesting Automobile Damage Case

The International Kerosene Oil Motor

Iron Making on the Pacific Coast

Safety Device for Engines and Condensers

An Improved Hay Stacker and Builders' Derrick

Giant Sand Wheel for the Calumet and Hecla Mining Company

Measuring the Heat of the Stars

By Mary Proctor

The Evolution of the Motor Cycle

By Hrolf Wisby

Hypnosis in Frogs

A Rare Fish

By C. F. Holder

Business and Personal Wants


  • Departments

    Correspondence - December 21, 1901

  • Index of Inventions - December 21, 1901

  • Recently Patented Inventions - December 21, 1901

  • New Books, Etc - December 21, 1901

  • Notes and Queries - December 21, 1901

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