Feature

Time Studies Suggest Distance to Europe Varies with Moon

Nature Ramblings: Sea-Cows

Atom Building Keeps Stars Shining, Says A.A.A.S. Head

Secretion from Crustacean Eyes Causes Color Changes

Artificial Feeding Keeps up Weight of New-Born Babies

Beginning and End to Universe May Fall before New Physics

Front Matter

Man Had Toothache 50,000 Years Ago

American Association Elects New Permanent Secretary

Catastrophic Earthquake Rocks Interior of China

Chemist Who Works in Library Wins Coveted Award

Millikan and Compton Debate Cosmic Ray Facts and Theories