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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

Dyeing in France and Contributions of Modern Science to the Art

By E. R. Mudge

Generation of Ozone in the Atmosphere

By C. W. Heaton

Transportation of Fresh Meats to Market

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

Progress of the Velocipede

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

Deterioration in the Material and Workmanship of Manufactured Articles

Mechanical Toys as a Means of Practical Instruction

Vis Viva and Inertia

Horticultural Protection

The Cincinnati Suspension Bridge

Russia Sheet Iron

Why Don't Boys Learn Trades?

Conversion of Cast Iron Into Wrought Iron—The Heaton Process

Beet Root Sugar

Manufacturing, Mining, and Railroad Items

Applications for the Extension of Patents

New Publications

Recent American and Foreign Patents

Official List of Patents

Patent Offices

Departments

  • Departments

    Answers to Correspondence

  • Business and Personal

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Deep Dives in Science -- Subscribe to our Collector's Editions Today

Deep Dives in Science -- Subscribe to our Collector's Editions Today