Volume 118, Issue 9
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Features
The Role of the Airplane Mechanic, The Sense of Smell In Insects, and more
Extracting Stories from Stones
Road Building Reduced to a Science
Putting X-Rays Through their Paces
The Delicate Problems of Reflecting and Refracting the Roentgen Radiations
Analysis of British Warship Losses
Number of Vessels Lost During the War and Causes of Their Destruction
Japan and the War
What the Mikado's Navy Has Done for the Allied Cause
Mechanical Equipment of the Farm- March 2, 1918
Latest developments in agricultural machinery and practical suggestions for the farmer