Feature

First Glances at New Books

Front Matter

New Whooping Cough Vaccine Promises Better Protection

“Rod-and-Bead” Markings Are Not Worm Casts

Radio Signals Interfere with Earthquake Records

15,000-Year-Old Stone Tools Reveal Dawn Men of America

Research Finds Secret of Tone in Old Violins

Benzedrine Sulfate Is Found a Speedy Cure for Hangovers

M.I.T. Gets Grant for Solar Energy Use Research

Head-Hunter Doctors Set Broken Bones with Chicle

Dosage of Carotene-in-Oil Eases Eyestrain, Fatigue

Grade-School Children Need Much More Dental Service