Feature

Japan Opened to Foreign Commerce: “A Classic of Science”

New Source of Vitamin A Discovered in Plant Seeds

New Discoveries Promised by Photoplates That “See Heat”

Individual Fog Droplets Measured for First Time

$10,000 Annual Prize Awarded Dr. Langmuir

Invisible Germ Destroyer Is Newest Ally of Surgeon

Lice Live on Scientists in Study of Typhus Fever

Conservatism Urged in Evaluating Radium Ore

Nature Ramblings: Singers of the Frosty Dawn

Playing Hooky from School Due to Diseased Personality

Weird Leather Costumes Protect Electric Workers

First Glances at New Books