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Deep Mines in Nevada

The Future of the Electric Railway

Food Adulteration

The American Chemical Society

Oysters at Quinnipiac

Binocular Vision in Telescopes

By Charles B. Boyle

New Electric Lamp

The Steam Engine Indicator

New Style of Moulding

Miscellaneous Inventions

A New Motor

A Useful Steam Boiler Appliance

Engineering Inventions

New Ceiling and Wall

Improved Mill Pick

The Crinoids of Crawfordsville

By H. C. Hovey

American Industries.--No. 45

Porcelain Chimney-Piece

Wheat Production of the World

Mechanical Inventions

Communications Received


  • Departments


  • New Inventions

  • Notes and Queries

  • New Books and Publications

  • Business and Personal

  • Index of Inventions

  • Patents

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