Feature

Books of the Week

Conservatism of Negroes Blocks African Progress

Cicada Not Harbinger

Rules for Chloromycetin

Tractors Not Solution for Under-Developed Farms

Photos Catch Rockets

Go North, Young Man

Most of Nation Will Get Subnormal Rainfall

[Photograph]: Water Boiler Reactor

Mysterious Radio Stars

World Areas Declared Capable of Raising Food

New Machines and Gadgets