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Profesor Morse Affixing His Signature to the Greeting Telegraphed by Miss S. E. Corn Well at the Morse Celebration

The Application of Steam to Canals.-No.4

By George Edward Harding

Professor Tyndall on "Sound"

Fowler's Propeller

Improved Hand and Light Power Drill

Experiences of a Bureau Officer

Dorn's Circular Cutter for Wood Work

Coates and Lascell's Water Engine

Extinguishing Fires by Carbonic Acid

Co-Operative Colonies

How Bodies May be Frozen by Heat

Mechanical Power and Specific Work

Steam Fire Engines

Steam on the Erie Canal

Buildings for Manufacturing Purposes

Burden Horseshoe Patent Extended--Value of the Invention

Ex-Commissioner Fisher's Experience in the Patent Office

Queries- July 8, 1871

Recent American and Foreign Patents- July 8, 1871

Answers to Correspondents- July 8, 1871

Official List of Patents- July 8, 1871

Applications for Extension of Patents- July 8, 1871

Practical Hints to Inventors- July 8, 1871


  • Letters

    Correspondence- July 8, 1871

  • Recommended

    New Books and Publications- July 8, 1871

  • Departments

    Business and Personal- July 8, 1871

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