Features
X-Rays Show the Way
New Equipment for Peace and War. For Use By Industry and by Medical Science
Radio Changes its Tune
How Industry Produces Crystals that Hold Broadcasting Stations on their Frequencies
Brake Linings,Tube Maker, and more
Synthetic -- of Rubber and Small Wires
The Railroads are Ready
American Railroads Are Now Equipped to Meet National Defense or War Emergencies
The Jeep, Two Navies, and more
Versatile Tractor For Army Use
Wah--Late of Thebes, Egypt
When Used on a 4000-year-old Mummy the X-rays Unexpectedly Reveal a Human Story
American Prehistory
Summary of Major Factors in Early Peopling of the Continent
Magnetism Comes of Age
Today Science Knows that the Ultimate Key to Magnetism is the Spinning Electron
Sound, Nature Leads, and more
By a New Method The Speed of Sound Has Been Redetermined
A New Tool for Science
A Noteworthy New Atlas Shows Astronomers What the Solar Spectrum is Really Like
Research, Plastic Tabs, and more
Projects Indicate Progress
Conveyor System for Planes
Assembly Line Principle Successfully Applied in Airplane Manufacturing Plant
Fungi
As the Enemy of Domesticated Plants These Lower Plants Cost us 3000 a Minute
Cotton Seeds, Alcohol, and more
De-Linting Process is Money Saver
Departments
50 Years Ago, March 1941
India's Wolf-Children
- From the Editor
Our Point of View, March 1941
Browsing With the Editor
- Recommended
Our Book Corner, March 1941
- Departments
Personalities in Science, March 1941
Industrial Trends, March 1941
Camera Angles, March 1941
Your Firearms and Fishing Tackle, March 1941
Telescoptics, March 1941
Current Bulletin Briefs, March 1941