Feature

“Gas Attacks” Improve German-Grown Tobacco

In Science Fields

Four Planets Join Spring Stars

Sterilization Is Urged to Prevent Blindness

Sequel to a Scientific Detective Adventure

New Atom Weighings Show Masses Need Corrections

Einstein Proved Right Again by Light from Hottest Stars

[Photograph]: Saver of Gold

Front Matter

“Brain Waves” Hint Epilepsy Is Neurological Thunder Storm

Apes Can Be Philanthropists as Well as Beggars

Pain of Inoperable Cancer Relieved by Cobra Venom