Features
More Hard Luck for the Ether
Tungsten Bows to the Plating Bath
The Sun an Atom Builder--A New Theory
Wings Over Three Americas
Science Lends a Hand to the Red Cross
New Paints From Synthetic Resins
Are Swimming Pools a Health Menace
From the Archeologist's Note Book, October 1931
A Chinese Funereal Horse
A Solar Observatory for the Amateur
Simple Instructions for Photographing the Sun and Its Eruptions
Cotton Stalks, A New Source of Rayon
Celluloid Taxidermy
Taming a Deadly Occupational Disease
Combating Magnetism in Watches
When a Sunbeam Splits
The Private Car, Yacht of the Rails
Departments
- Departments
Across the Editor's Desk, October 1931
Back of Frontispiece, October 1931
The Newsroom Runs at High Pressure
Our Point of View, October 1931
Anti-Cavitation Marine Propeller, Chemistry Imitates Reptile Skins for Women's Shoes and more
Patent Law in U.S.S.R, Color Not a Trademark and more
Books Selected by the Editors, October 1931
