Volume 164, Issue 5
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Features
Our Search For The Supernatural-II
Did Queen Elizabeth's Spirit Appear?
What Light for Industry?
Relative Freedom from Heat and Glare, Plus Color Control. In Fluorescent Tubes
New Porcelain Insulation
High Mechanical Strength and Electrical Resistance in Die-Pressed Material
Inspection, Timer, and more
Gamma Rays Pierce Steel, Show Defects
A Strange Picture
Chairman of the Department of Astronomy and Director of the Observatory at Princeton University. Research Associate of the Mount Wilson Observatory of the Carnegie Institution of Washington
Quality in Warplanes
How the British. Out-Numbered in Aircraft, Forced a Change in German Tactics
Speed and Sting--The M. T. B.'s
Motor Torpedo Boats Attain Speed of 60 Knots, Carry Four Torpedoes, Machine Guns
Atom Smashing: Two Methods
Why the Weaker Electrostatic Atom Smasher Thrives Despite the Powerful Cyclotron
Petroleum Research, Home-Idity, and more
Increased 539 Percent in Eleven Years
Human Hibernation
What Today of the Frozen Sleep Therapy for Cancer? Failure, or Success?
Like Humans
Bacteria Have Their Own Periods of Weakness
Electrical Gold Mining
Giant Dredge and Gold Recovery Plant Are Gleaning Gold Near Famous Comstock Lode
Pulling the Wool off Your Eyes
"New Federal Law" Defines Wool, Sets Up Standards for Labeling Fabrics Honestly
Lubricant Washes the Engine
Designed for Heavy-Duty Gasoline and Diesel Engines, New Oil has Detergent Properties
Spray Poison, Aniseikonia, and more
Kills Codling Moth Worms, Spares Bees
Supercharging the Pilot
Aeroembolism Prevented by Pre-Flight Administration of Oxygen
Plane Location, Plane Conversion, and more
Triangulation-Plus Spots Transports