Feature

Pilots Need Enemy

Sunset Clouds Double as Rushing Flood Waters

In Science Fields

A New Kingdom from Sawdust

Theory of Gravitation

Proteins to Rehabilitate

[Photograph]: Tied Up

High-Frequency Current Used for Dehydration

Front Matter

Chemical Prevents Mud

Yeast Cells May Be Used to Manufacture Biotin

Army Limits Use in U. S. of 80-Octane Gasoline