Feature

50,000 Blood Donors Weekly Needed to Supply Quota

[Photographs]: Synthetic

Yellow Fever Vaccinations Now Safe from Jaundice Peril

Fast-Growing Chinese Elm Shows up Well in Tests

In Science Fields

New Machines and Gadgets

Silver in Place of Tin Recommended for Solder

First Glances at New Books

Nature Ramblings: Summer Wildflowers

Double Feature

Planes and Tanks Have Made Heavy Artillery Obsolete

Roses Yield Vitamin C to Enrich British Diet