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Improved Ice and Refrigerating Machine

Concrete for Building Purposes

Is It a Dastardly Outrage?

Progress of Cabs

A Great Unrecognized Inventor

The Vienna Show

Scientific and Practical Information - August 9, 1873

Madder, Vegetable and Chemical

The Star Shower of August 10

Properties of Saturated Steam

A New Application of Spectrum Analysis

Cheese Skipper Exterminator

Improved Milk Refrigerator

The Great Exposition--Letter from United States Commissioner Professor R. H. Thurston

Abbe's Patent Bolt Forging Machine

Pneumatic Screw Ventilator for Cars

The Cecropia Silkworm

Double-Acting Bucket Plunger Steam Pump

Recent American and Foreign Patents - August 9, 1873

Decisions of the Courts - August 9, 1873

Value of Patents, and How to Obtain Them

Answers to Correspondents

Communications Received - August 9, 1873


  • Letters

    Correspondence - August 9, 1873

  • Departments

    Business and Personal - August 9, 1873

  • Index of Inventions - August 9, 1873

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