Feature

Scientists for Defense

First Glances at New Books

Electric Device Aids in Study of Herring

Fortifications of Concrete Not Useless despite “Failure”

Tiny Grinding Noises Made in Earth May Warn of Quake

Longest Constellation

Measles Increasing among Civilians but Not in Army

Skin Test for Pregnancy Gives Answer in One Hour

Even Nurture in the Wild Will Not Destroy Intelligence

[Photograph]: Grinding

Important Explosives Chemical Can Be Made from Petroleum

Nature Ramblings: Battling Bindweed