Feature

New Machines and Gadgets

Front Matter

Try Anti-Cold Vaccine

[Photograph]: Deadly to Mate and Man

“Road Map” Helps X-Ray Ulcer Treatment

Gums Cause Tooth Loss

Ducks Return to Flyway When Carried Far Away

Clamp Lets Blood Flow while Surgeon Stitches

Solar Water Pump

[Photograph]: Airborne Computer

Polio Virus Crystallized

Geophysical Year Plans