Feature

Nature Ramblings: The Survival of the Useless

Noise Standard to Help in Choosing Hearing Aids

First Glances at New Books

Back Matter

Front Matter

Coughs May Be Prevented by Process of “Hardening”

Cast of Easter Island Head Placed in American Museum

Laymen Should Know about the Findings of Science

Chemists Seek Uses for Molasses-Thick Oil

Storm Windows Save Fifth of Coal in Test House

Model Shows Layered Interior of Earth

Unusual Obituary Tells of Death of Oldest Chimpanzee