Feature

Planets Rise Late

Nature Ramblings: Alien Ally

Low-Temperature Process for Separating Magnesium

Americans Gave 50% More to Polio Fund This Year

Pain of Shingles Relieved

Japs Have Cyclotron

In Science Fields

Off Press

Deadly Bombers

Front Matter

Hermetically-Sealed Buildings for Big Guns

[Photograph]: Old and New