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The Landore Siemens Steel Works England

Durability of Timber

Calles' Hydro-Aero-Dynamic Wheel

Syracuse--Its Mechanical Industries

On Specific Heat

By P. H. Vander Weyde

Report of Experiments for Testing the Relative Value of Lubricating Oils

By A. H. Van Cleve

Tangye's Smoke and Heat Precipitator

Improvement in the Manufacture of White Lead

Smith's Portable Furnace for Shrinking on Tires

The Condition of Mechanics and Laborers in England

Something about Lubricators

To Smoke or Not to Smoke

Protection to American Industry

Scientific Intelligence- December 9, 1871

Timely Suggestions

Recent American and Foreign Patents- December 9, 1871

Applications for Extension of Patents- December 9, 1871

Official List of Patents- December 9, 1871


  • Letters

    Correspondence- December 9, 1871

  • Recommended

    New Books and Publications- December 9, 1871

  • Departments

    Business and Personal- December 9, 1871

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