Feature

Front Matter

Temperature and Humidity Recorded by Same Instrument

Brightness of Meteors Studied by Harvard

Science Fights Crime with New Inventions

Razor Blade That Lasts Six Months Shown

Man Just an Accident Says Sir Arthur Eddington

Scientists May Be Searching Vainly for Negative Proton

Long Radio Blurbs Hard to Remember

Leningrad Institute Celebrates 50th Anniversary

New Government Charts Indicate Diet Requirements

Russians Explore Caucasus Hills

Red Man and Irishman Have Problems in Common