Feature

Ozone as Preservative

Foundation Board Named

Detector of Flaws in Rail Joints Makes Travel Safer

Nobelist Fermi Awarded Patent on Atomic Device

In Science Fields

Most Delicate Flint Work

Warmer and Drier November for U. S.

Tree Production Speed-up by Wires, Cutting Roots

Books of the Week

New Machines and Gadgets

Sugar Handy Aid for A-Bomb Victims

Fluoridation Cuts Caries