Feature

Levulinic Acid Prepared Easily from Cornstarch

Chance to See Mercury

Beauty of Music Depends on Notes, Not Just Taste

Life Was Long Clambake for Tennessee Indians

Science Clubs of America

In Science Fields

Unknown Mechanism That Starts Blood Flow Found

Sciences Will Merge in Study of Post-War Problems

[Photograph]: Final Assembly

[Photograph]: Great Transport

Front Matter

[Photograph]: Fitting Men to Work