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Porcelain Manufacture in New York

Crossing the Boundary of the Experimental Evidence

Foreign Exhibitors at the Centennial

A Variable Screw

The Metallurgy of Iridium

American Porcelain

The Fireman's Respirator

The New Revelations of a Snow Flake

A New Steam Launch

Improved Lewis

A Three-Wheeled Omnibus

Scientific and Practical Information

Improved Center Draft Tongue for Reapers and Mowers

Reid's Automatic Hatchway

Improved Pipe Joint

Improved Mining Dial

The Crane

The Volume and Weight of Distilled Water at Different Temperatures

By Richard H. Buel

Decisions of the Courts - March 20, 1875

Recent American and Foreign Patents - March 20, 1875

Canadian Patents - - March 20, 1875

Communications Received - March 20, 1875


  • Departments

    Business and Personal - March 20, 1875

  • Notes and Queries - March 20, 1875

  • Index of Inventions - March 20, 1875

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March 20, 1875

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