Feature

Activated Clay Filter for De-Leading Gasoline

Front Matter

Emigration and Food

Brains for Study

[Photograph]: Artificial Clouds

Beriberi Cure Rapid

Casein Curds Floated out by Use of Carbon Dioxide

Heartbeats Counted

First Baekeland Award to Be Given Dr. Gilliland

Dr. William H. Howell, Physiologist, Dies

More DDT Victories

[Photograph]: Waterspouts