Volume 100, Issue 15
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Features
Center Versus Side Door Cars
The New Hudson River Steamer Robert Fulton
The Fourth Dimension Essays
Recent Flights of Germany's First Zeppelin Military Airship
Science
Engineering
Electricity
The Filtration of City Water Supply
A Life-Line Air Cannon
By the English Correspondent of the Scientific American
Detecting Underground Streams with an Ear-Trumpet
By the Paris Correspondent of the Scientific American