Science: Gloomy Soil-Saver

Few people are gloomier, professionally and perennially, than the men who run the U.S. Soil Conservation Service. Guests at Princeton's Bicentennial Conference on Engineering and Human Affairs last week heard a habitual prophet of doom: Dr. Hugh H. Bennett, 65, chief U.S. conservationist. In his best doomsday voice Dr. Bennett talked about soil and its abuse. Every decade, he said, there are 200,000,000 more people in the world and less soil from which to feed them. A vast acreage is being ruined each year. Something must be done for the soil.

But something has already been done, and Dr. Bennett did it....

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