Feature

New Machines and Gadgets

[Photograph]: Tougheners

Survey of Physicians

Wallace Visits Institute

Empyema Remedy Found in Disinfectant and Detergent

Front Matter

Mercury Appears

Recipe for Peace

Film Protects Radio

New Operation for Repairing Torn Nerves

No Engine Changes Needed to Use Low Anti-Knock Gas

British Armored Vehicle at Home on Land or Sea