Feature

Smallpox Virus from Eggs “Takes” in Vaccination

Bill Would Prevent Sale of Poisons in Disguise

Scientists Unleash Largest Atom-Attacking Machine

Nature Ramblings: Specialists in Feathers

“Like Attracts like” May Explain Childless Couples

Intellectually Trained Jobless to Get Immediate Employment

Front Matter

Improved Radio Beacon to Aid Aviators

Long-Known Chemical Found to Be Most Versatile Solvent

A Matter of Muscles

Nature Ramblings: The Breath of a Fish

First Glances at New Books