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Features

Report of the Commissioner of Patents for 1894

The Career of a Chemist

A Factory Chimney Struck by Lightning

A Gage Indicating Pressure and Temperature

Philbrook's Dental Tool

Electrically Controlled Valve Gear for Pumping Stations

A Parasite Very Numerous in Hogs

By John Michels

The Teachers College of New York City

Philadelphia ice Boats

Cloud Photography

Fennecs in the Berlin Zoological Garden

To Inventors - March 2, 1895

Departments

  • Departments

    The Heavens in March 1895

  • Recently Patented Inventions - March 2, 1895

  • Business and Personal - March 2, 1895

  • Index of Inventions - March 2, 1895

  • Notes and Queries - March 2, 1895

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March 02, 1895

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