Medicine: Water Over the Dam

As director of health and safety for TVA, Dr. Eugene Lindsay Bishop has the job of keeping down malaria. It is a big job, because the 10,000-mile shore line of TVA's lakes offers the perfect breeding ground for mosquitoes. From the beginning, Dr. Bishop was convinced that the best way to fight mosquitoes was to raise and lower the water level in the reservoirs periodically. The plan worked, hit no snag until World War II's power shortage, when an engineer objected to dumping precious water. The Authority's top brass settled the dispute...

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