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Scientific American Magazine Vol 98 Issue 21

Scientific American Magazine

Volume 98, Issue 21

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Features

Safety of the Blackwell's Island Bridge

A City of Towers

President Roosevelt on the Conservation of Our Natural Resources

Postal Railway in Berlin

The Current Supplement

Sending Wireless Messages to a Balloon

Protection for Patents and Trade Marks of Goods to be Exhibited

Progress of the Wright Aeroplane Experiments

Experiments with a Postal Automobile in France

The Use of the Air Brush in the Decoration of Wall Paper and Fabrics

Jacques Boyer

Maximum Economical Storage Capacity of the Croton Watershed

Control by Sound Waves

R. G. Skerrett

Forest Destruction and the Erosion of Arable Lands

Day Allen Willey

Extracting the Venom from Lancehead Snake for Medicinal Use

The Largest Clock in the World

A Computing Cheese Cutter

Gathering and Loading Fork

A New Type of Filter

Departments

Correspondence - May 23, 1908

Recently Patented Inventions - May 23, 1908

Notes and Queries - May 23, 1908

New Books, Etc. - May 23, 1908

Index of Inventions - May 23, 1908

Patents - May 23, 1908