Science: DDT Paint

DDT, the wonder insecticide, which has been second only to penicillin as the biggest continuing science news of 1944 (TIME, June 12 et seg.), was at it again last week. Its latest performances:

¶ A DDT solution, sprayed on a wall, has been found deadly to flies for three months. But two British biochemists, G. A. Campbell and T. F. West, think they have developed a method of making it last longer: they mixed it with paint. Using an oil-bound water paint with a 5% DDT solution, they painted the inside of a cage containing fly pupae. It killed the flies as...

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