Feature

Many Found to Be Carriers of Disease-Causing Amoeba

Educator Doubts That America Is Nation of 12-Year-Olds

Creating “Language” for Chimpanzees

Frog Tadpole Tails Successfully Transplanted

Steadiness Tests May Pick Marksmen before They Shoot

Advanced Physics Theory Lags behind Experimentation

Conferences Leave Teeth in Pure Food and Drug Bill

Neutron Study Leads to New Cosmic Ray Theory

Grave of Prehistoric Chief’s Daughter Excavated

First Glances at New Books

Benares near Center of Monday Earthquake

Diphtheria Still Unconquered, Even Shows Local Increases