Feature

[Photograph]: Pavlov in His Laboratory

Liquid Films Form Delicate Designs

Hospitals Should Use Radium for Atomic Physics Research

Nature Ramblings: On Their Own Roots

First Glances at New Books

Front Matter

Alien Crime Wave High, but Low for German Immigrants

Gold Mining Operations Produce Fossils Also

[Photograph]: Devil’s Club

Electrochemical Method Used to Concentrate Rare Earths

New Instrument Measures Heat of Various Sounds

Urges Museum Purchase of Indian Collection