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A New Type of Auxiliary Vessel for the British Navy

The Transportation Problem in New York City

Return of the Jesup Siberian Expedition

A Proposed Duodecimal System of Weights and Measures

The Hall-Marking of Gold and Silver in England

A Pneumatic Coating Machine

Dredger for Levee Building

By Enos Brown

Transporting the 16-Inch Gun to Sandy Hook

New York and Brooklyn Rapid Transit Subway

Temple Models for the St. Louis Exposition

By Harold J. Shepstone

A "Scientific" Violin

By H. C. FyfeE

The "Santos-Dumont No. 9"

By The Paris Correspondent Of The Scientific American

The Egyptian Paint Palettes

By Walter L. Beasley

Lock Valve

The "Stab" Switch

Pivoted Hub

Patent Department

Automatic Telegraphy

Legal Notes - December 20, 1902

Business and Personal Wants

Patents - December 20, 1902

The Wealth of Nations


  • Departments

    Science Notes - December 20, 1902

  • Correspondence - December 20, 1902

  • Recently Patented Inventions - December 20, 1902

  • Index of Inventions - December 20, 1902

  • Notes and Queries - December 20, 1902

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December 20, 1902

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