Feature

Smallest Possible Mammal

Products from Plastic

Automatic Electric Device Makes Own Wind Record

Books of the Week

Counteract Barbiturates

Most Nations Sponsor Big Water Control Projects

New Machines and Gadgets

Nature Ramblings: Was It Courage?

Front Matter

Check Polio-Induced Limp

Jet Planes for Civilians Predicted for 1951

Small Cities Are Now Gaining in Importance