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Features

Iron Railway Bridge Over the Avon, Xylograpny, or Printing and Graining from the Natural Surface of the Wood, and more

Generation of Ozone in the Atmosphere

By C. W. Heaton

Dyeing in France and Contributions of Modern Science to the Art

By E. R. Mudge

Transportation of Fresh Meats to Market

Sanford's Kerosene Safety Lamp, and Safety Attachment for Common Lamps

Cast-Welding of Steel and Iron—A New Combination Rail

Progress of the Velocipede

The Cincinnati Suspension Bridge

Horticultural Protection

Vis Viva and Inertia

Deterioration in the Material and Workmanship of Manufactured Articles

Mechanical Toys as a Means of Practical Instruction

Conversion of Cast Iron Into Wrought Iron—The Heaton Process

Why Don't Boys Learn Trades?

Russia Sheet Iron

Beet Root Sugar

Manufacturing, Mining, and Railroad Items

Recent American and Foreign Patents

Applications for the Extension of Patents

New Publications

Official List of Patents

Patent Offices

Departments

  • Departments

    Answers to Correspondence

  • Business and Personal

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