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Features

Boston and the "America" Cup

The Metric System in Congress

The Greatest Iron Ore Mine in the World

Report of the Chief of the Bureau of Ordnance

Imports and Exports of the Countries of the World Compared

Filtration of Our Water Supply

Animals that Bloom and Plants that Eat Meat

By Charles Minor Blackford

The Iron and Steel Institute at Paris

By the Paris Correspondent of the Scientific American

A New Ratchet-Wrench

The Plecher Electro-Pneumatic Telephone

Power Scrapers on the St. Lawrence Power Company's Canal

A Recharging Motor for Electric Vehicles

The Manufacture of Edison Phonograph Records

A Novel Wind or Water Motor

The Roze Dirigible Airship

Disappearing Demon

By W. E. Robinson

The Protected Cruisers of the "St. Louis" Class

Armored Burrowers

By Charles F. Holder

V. An Inexpensive Water Motor

By George M. Hopkins

To Inventors

Departments

  • Departments

    Business and Personal - December 22, 1900

  • Recently Patented Inventions - December 22, 1900

  • Index of Inventions - December 22, 1900

  • New Books, Etc. - December 22, 1900

  • Notes and Queries - December 22, 1900

  • Patents - December 22, 1900

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December 22, 1900

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