Feature

[Photograph]: For Physicians

Syphilis Rate in Draft One-Seventh That in 1917

Three Inches of Safety Glass Shields Fliers from Bullets

Water

Standards Adopted for Technical Abbreviations

Different Time Intervals Distinguished by Rats

Infantile Paralysis Virus May Enter Body through Mouth

New Government Office for Defense Scientific Work

New Weapons Alike in “Growing Pains” Period

Girls’ Experience Shows Hitch-Hiking Reasonably Safe

Synthetic Starch Made by Enzyme Acting on Glucose

First-Aid Information against War Gases