Feature

N. A. C. A. Laboratories Are Devoted to High Speed Planes

G-Men Fight Crime with Powerful New Microscope

Pittsburgh Assured against Recurrence of 1936 Flood

Hassel Comet Takes New Names as Prior Discoverers Are Found

First Glances at New Books

[Photograph]: He Grew Up!

Plasticized Sulfur Now Serving as Road-Binder

[Photograph]: Not so New, after All

In Science Fields

[Photograph]: Two Largest

Dull Babies Made Normal by Feeble-Minded Girls’ Care

[Photograph]: Turning Evil to Good