Feature

Exiled Woman Scientist Continues Work on Uranium

Nylon, Rival of Silk, May Soon Compete with Wool

New Theory Shows Moon Once Part of South America

Trumpeter Swans Saved from Threatened Doom

First Glances at New Books

Front Matter

Great Growth of Human Brain Causes Skull Changes

[Photograph]: Mile-a-Minute

Ice Melts without Heat in World of Thin Films

War’s Demands for Wood Wreaking Havoc in Canada

Music in Three Dimensions

How Large Families Make Ends Meet