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Features

The Balloon and the Aeronauts

End of the Vienna Patent Congress

Theories of the Sun Spots

The Balloon Voyage to Europe

Modern Miracles

Hoe's New Printing Press

Accident to the New Docks

Scientific and Practical Information - September 13, 1873

Hay Fever

The Large Floating Derrick

The Magic Lantern as a Means of Demonstration

By Henry Morton

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

Improved Turbine Water Wheel

The Hydraulic Propeller--a Novel Mode of Marine Propulsion

The Persian Pavilion at Vienna

The American Association for the Advancement of Science

A Grand Medal for Cleveland

American Manufactures at Vienna

Recent American and Foreign Patents - September 13, 1873

Answers to Correspondents - September 13, 1873

Communications Received - September 13, 1873

Departments

  • Letters

    Correspondence - September 13, 1873

  • Departments

    Business and Personal - September 13, 1873

  • Notes and Queries - September 13, 1873

  • Index of Inventions - September 13, 1873

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September 13, 1873

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