Feature

Doctors Measure Blood Flow without Cutting Open Vein

Bacteria Exploded in Making of New Type of Vaccines

First Research Shows Human Defectives Meet Early Death

Land Animals Small When Coal Was Forming

War against Foot and Mouth Disease Shifts to New Area

Gem Impressions Puzzle Archaeologists at Ur

Little Earthquakes of Traffic Recorded by Tiny Seismograph

Booklists of the A. A. A. S.

Leprosy Germs Grown in Laboratory for First Time

Foot and Mouth Disease Fought in New California Outbreak

Cosmic Rays Detected Having Highest Energy Ever Observed

Leaders, Criminal or Not, Have Traits in Common