Volume 87, Issue 25
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Features
A Proposed Duodecimal System of Weights and Measures
A New Type of Auxiliary Vessel for the British Navy
Return of the Jesup Siberian Expedition
The Hall-Marking of Gold and Silver in England
A Pneumatic Coating Machine
Dredger for Levee Building
Transporting the 16-Inch Gun to Sandy Hook
New York and Brooklyn Rapid Transit Subway
Temple Models for the St. Louis Exposition
A "Scientific" Violin
The "Santos-Dumont No. 9"
By The Paris Correspondent Of The Scientific American
The Egyptian Paint Palettes
Lock Valve
Patent Department
Automatic Telegraphy
The "Stab" Switch
Pivoted Hub
Legal Notes - December 20, 1902
Business and Personal Wants
Patents - December 20, 1902
The Wealth of Nations