SCIENTIFIC AMERICAN, June, 1922, New York, New York

This issue contains the following prints, articles, and/or ads: The World's Wages - a Statistical Anomaly;  The North Atlantic Ice Patrol; Beyond the Microscope; The Gentle Art of Radio Broadcasting; Forecasting Earthquakes; Diesel Engine Wins Its Way; Speeding Up Radio; Evolution in Museum Technique; The Great Wall of China; other articles and ads. This issue is in good condition. See photos for additional details.