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The Gatling System of Firearms

Triscott and Wheeler's Shoe Fastenings

Patton's Improved Meat Chopper

Rotary Engines

Middle Park, Colorado

Congress and Patent Extension Cases

Publication of the Patents

Drying Substances by Steam

American Homesteads

The Stupidity of Ignorance

The Positive Motion Loom Grand Medal of Honor

Scientific and Practical Information

Extension Cases before Congress

[Special Correspondence of the Scientific American.]

Recent American and Foreign Patents


  • From the Editor

    Answers to Correspondents - March 2, 1872

  • Letters

    Correspondence - March 2, 1872

  • Departments

    Business and Personal - March 2, 1872

  • Notes and Queries - March 2, 1872

  • Index of Inventions - March 2, 1872

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March 02, 1872