Feature

Eye Can “See” Current as Vague Cloud

Predict Three Score Years and 20 for Many in U.S.

Science 1921-1955

New Machines and Gadgets

Front Matter

To Study Whistlers

Dogs Fare Better When They Regulate Own Food

[Photograph]: Match-Scratcher

To Send Small Rocket up about 60 Miles

Ammoniated Cigarettes

See Aspirin Effect Due to Dual Action on Glands

Teach Hens to “Smoke”