Volume 127, Issue 6
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Features
The Largest Cruising Airdrome
Inventor vs. Forger--I
Early Check Forging and the Transition from Plain Forgery to Raising
Are You a Musician?
Professor Seashore's Specific Psychological Tests for Specific Musical Abilities
About the Radio Round-Table
Opinions of Radio Leaders Regarding the Past, Present and Future of Broadcasting
Our Point of View, December 1922
What Is There Left To Do?
Some of the Things that Agricultural Science Has Still Before It
The Pulitzer Trophy
A Race of Radiators, Wires and Landing Gears
A Super-Locomotive With the Latest Improvements, Bud Mutations
Finger-Prints Via Radio
Enlisting the Long Arm of Radio in the Search for Europe's Malefactors
Painting a Wire Fence Without Waste of Paint, Radiators for Aircraft Engines and more
A Square Deal for the Psychics
Criticisms from Various Sources of the James Black Articles, with the Editorial Verdict
Lighting the Mississippi
The Illumination that Makes the Father of Waters as Safe by Night as by Day
Sleeve-Valve Engines for Motorcycles, Cleaning Wheat at the Thrashing Machine
Flood Control at Kansas City
How a River Is Being Diverted and Carried Through a Hill
Life-Belts and Near-Life-Belts--A Study of Government Regulation and an Invention, A Police Baton Furnished with a Flashlight
When Perforated Paper Goes to Work
How Strips of Paper Can Endow Inanimate Machines with Brains of Their Own
The Rigid Track-Layer
The Dry-Cleaning and Dyeing Industry
Some of the Interesting Technical Problems that Have to Be Met
Large Portable Water Tanks, The Air-Cooling of 1923 and more
Millions in Food from Federal Free Seed
The Story of 240,000 Acres of Gardens, and $192,000,000 Worth of Vegetables
The New Conservation--I
Up-to-the-Minute Definitions of Waste, and Up-to-the-Minute Procedure for Preventing It
Gear-Testing Machines, Keeping Springs Young
America's Busiest Radio Station
The Receiving Center at Riverhead, Long Island, and the Principles on Which It Works
A Novel Method of Pumping Water, Recent Developments in British Pelton Wheel Design
Forgery or Genuine?
Some New Laboratory Methods of the French Handwriting Experts
Harvesting Sugar-Beet Seed in Sleds, Iron Ore in Europe and more
Fog Signaling by Polarized Sound
A Simple Arrangement for Determining the Exact Direction from Which a Signal Comes
Taking Away from a Picture to Get a Larger Picture, The Muscle as a Motor
Blasting a Channel Through a River's Rocky Bottom
How New York Is Meeting the Demand of Big Modern Ships for Harbor Waterways of 40-Ft. Depth
Radio Direction-Finding in Flying Machines
Virgin Wool and Shoddy
What the Microscope Tells Us About Their Make-Up and Identification
Treasures from Cinders
James Playfair McMurrick, Temperatures in the United States and more
The Naturalist's Corner, December 1922
Chemistry Notes
The Market Place for the Small Advertiser