Volume 110, Issue 6
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Features
The Scientific American Safety First Medal
The Five Winning Devices
The Business Side of the "Safety First" Principle
How Accident Prevention Pays
Earthquakes and the Panama Canal
Four-Gun Turrets of the French Battleship "Normandie"
A Notable Experiment in the Mounting of Heavy Ordnance
Safety in Steel Works
The Scientific American's Associate Editor Sees How Employees Learn Caution by Hunting Dangers
German Gasoline-Electric Road Train, How the Ostrich Rancher Travels and more
By Our Berlin Correspondent
Let the Sun Supply Hot Water, The Highest Dam in the World and more
The Human Body in Action
How Science Helps the Athlete to Help Himself
Safety in an Automobile Factory
Methods That Have Produced a Sixty Per Cent Reduction in Accidents
A Portable Field Searchlight, The Expanding Weather Map
By the Berlin Correspondent of the Scientific American