
Our Agricultural Ellis Island
How the Department of Agriculture is Using a Famous Old Virginia Estate as a Testing Ground for Immigrant Plants

Our Agricultural Ellis Island
How the Department of Agriculture is Using a Famous Old Virginia Estate as a Testing Ground for Immigrant Plants

Why Headlight Glare?
How Uncle Sam Tested the Headlights on 400 Ordinary Motor Cars and What He Found

Smashing Dishes to Solve their Secrets
Why Uncle Sam Breaks 6,000 Samples of Plate and Window Glass and More than 2,000 Pieces of China In Novel Tests

More Water for Washington
The Great New Conduit that Will Double the Capital City's Supply

Women on the Farm
The Role in Our National Life of the Wives and Daughters of Agriculture

Where Corn is King
Why Our Agricultural Prosperity Depends Largely on Our Annual Hundred Million Acres of Corn

Mapping from the Skies
How Aerial Photography Is Being Employed to Chart Our Heretofore Inaccessible Coast Lines

Shadow-Testing of Gear Teeth, The Radio Typewriter for Airplanes

Lighting the Mississippi
The Illumination that Makes the Father of Waters as Safe by Night as by Day

Millions in Food from Federal Free Seed
The Story of 240,000 Acres of Gardens, and $192,000,000 Worth of Vegetables

A Huge Coast-Defense Range-Finder, Taking the Error Out of Airplane Wings

Earthquake Detection Near The White House, Some Physical Characteristics of the Ear, and more

Radio Rules in the Making
Congress Considering the Recommendations of the Radio Conference and in Modified form will mold them into a new Law

Uncle Sam and Radio
Further Developments in the Deliberations of the National Radio Conference and Future Probabilities

Taking the Riddles Out of Radio
Solving at the Washington Conference the Perplexities That Complicated Wireless Communication

Potash, An Essential for Plant Growth
The Wide Scattering and Low Concentration of America's Deposits, and What We Can Do About It

Better Use of Low-Grade Coal
A Coking Furnace of Novel Design Which Greatly Enlarges the Bounds of the Steel Industry

Lessening Lumber Losses
Some of the ways in which Wood Wastes are saved and put to work

Why Weary Metal Fails under Light Loads
The Causes of Steel Fatigue, and the Ticklish Problem of Testing Against It

Phosphorus, the Backbone of Life
America's Great Deposits of This Chemical for Fertilizers and Through Them for Food

Saving Food Fish by the Hundred Million
How Victims of the Mississippi Overflow Are Returned to the Main Channel

How Much Water for the Crops ?
Development of an Automatic Transpiration Balance by Government Scientists

The Geologist's Part in Road Building
How Wisconsin's Highways are located with Expert Scientific Advice

Our "ZR-2" Airship and its Shed
Some Details of the Giant Dirigible and the Huge Hangar To Be Used by the U. S. Navy