
How Much Water for the Crops ?
Development of an Automatic Transpiration Balance by Government Scientists
Development of an Automatic Transpiration Balance by Government Scientists
How Victims of the Mississippi Overflow Are Returned to the Main Channel
How Wisconsin's Highways are located with Expert Scientific Advice
Some Details of the Giant Dirigible and the Huge Hangar To Be Used by the U. S. Navy
How Scientific Tests Are Solving Some Outstanding Transportation Difficulties
What Is Being Done by Way of Making Our Longest River Navigable
Solving the Vehicular Tunnel Ventilation Problem with the University of Illinois' Miniature Test Duct
How Modern Machinery Is Minimizing Hand Labor in Hemp Production
The Extent to Which the Labor Shortage Persists, and the Measures of Relief Available
How Precision Was Substituted for Guesswork in the Making of Swiss and Other Varieties
How the Tree Is Grown and Tended to Yield the Raw Materials of Furniture and Basket Factories
At Last a Successful Means of Dealing with the Worst Present Mexico Ever Made Us.
How the Department of Agriculture Is Bringing Special Film Features to All Parts of the Country
Support science journalism.
Thanks for reading Scientific American. Knowledge awaits.
Already a subscriber? Sign in.
Thanks for reading Scientific American. Create your free account or Sign in to continue.
Create Account