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Features

California Raisin Culture

Retrospect of the Year 1900

A Pyrotechnic Fire-Alarm

Method of Constructing Wooden Water-Pipe

A New Induction Coil

By W. C. Peckham

A Wonderful Clock

Some Interesting Experiments in Dirigible Airships

The French Armored Cruiser "Montcalm"

A Safety Military Spy-Glass

The Bolometer or Actinic Balance

By Marcus Benjamin

Departments

  • Departments

    Recently Patented Inventions - January 5, 1901

  • Index of Inventions - January 5, 1901

  • Notes and Queries - January 5, 1901

  • Business and Personal - January 5, 1901

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Know Before You Vote