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Improved Bee Palace

The Schoolmaster Abroad--New Discovery in Engineering

A Way to Reduce Wages

Miscellaneous Summary

Discoveries and Inventions Abroad

Ingersoll's Patent Friction Wrench

Inadequate Means of Escape from Fire

Congress of Mechanical Engineers--Iron Ships

The Laws of Storms

Our Maritime Defenses

Uninflammable Fabrics

Steam on City Railroads

The Dignity of Labor

Patent Claims

Iron and Steel Extracted from Waste Iron Cinders

Recent American Patents

To Our Readers


  • Departments

    New Books and Publications

  • Correspondence

  • Notes and Queries

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