Feature

Scientist Makes Study of “Seven Ages of a Fossil”

[Photograph]: Could You Name This Bird?

Russians Explore Caucasus Hills

Rare, Fatal Muscle Weakness Checked by New Treatment

New Government Charts Indicate Diet Requirements

American Mummies Found Well Preserved

Temperature and Humidity Recorded by Same Instrument

Front Matter

Western Dust Reaches Ocean for Second Time

First Glances at New Books

Radiophone Used to Send Medical Advice to Ship

In Science Fields