Scientific American Magazine Vol 120 Issue 3

Scientific American Magazine

Volume 120, Issue 3

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Features

An Ingenious Irrigation Scheme, Forest Fires of Spontaneous Origin and more

Getting More Messages Over Our Wires

How the Traffic Capacity of Telegraph and Telephone Circuits Has Been Increased Three-fold

What Machinery is doing for the Walnut Industry

How Production Is Enlarged, Prices Stabilized, and Wastes Eliminated

Howard C. Kegley

Battleship Strength of the Five Leading Naval Powers

Analysis of the Standing of the Allied Navies in Dreadnoughts, Predreadnoughts and Battle-Cruisers

Guns for the Fighting Front

American Heavy Artillery Designed and Built for Our Armies in France

Fitting the Shoe to the Soldier

The Evolution of a Satisfactory System of Measuring the Soldier's Foot

Deterioration in Ultra-Violet Radiation of Mercury Lamps

Departments

The Service of the Chemist

The Motor-Driven Commercial Vehicle