Scientific American Magazine Vol 112 Issue 21

Scientific American Magazine

Volume 112, Issue 21

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Features

War, Humanized and De-Humanized, The Renewing of Italy's Navy and more

Visible Speech

The Eye Seeing and the Rule Measuring the Difference Between Sounds

A. L. Kroeber

The Naval Review at New York, 4,250-Pound Block of Coal for Fair

Connecting Idaho with the Sea

Completion of the Celilo Canal along the Columbia River

Fred W. Vincent

Our Army Wireless Automobiles

Portable Radio Telegraph Apparatus of 200-Mile Sending Radius

C. H. Claudy

The Energy of Projectiles