Feature

Old Tin Cans Chemically Exchanged Equally for Copper

Yellow Fever Vaccination of Army Extends Procedure

WPA Guidebooks Help Search for Birth Records

In Science Fields

Planet Trio

Strange Ringed Star Found Resembling Gigantic Saturn

Sulfur Fumes Liquefied Give Chemists Useful New Solvent

Air Corps Is “Safest,” at Least in Peacetime

Oysters, like Cattle, Grow Fat in Rainy Years

Nature Ramblings: Standardized Plant Names

Analysis of Life Essence Is Now Made Possible

Science Clubs of America