From painstaking ten-minute to half-hour microscopic examinations of each of 19,797 exquisitely thin slivers of tissue from human lungs, medical researchers reported last week that they had found the strongest anatomical evidence that heavy cigarette smoking is a potent cause of lung cancer. At the A.M.A.'s Dallas meeting, Dr. Oscar Auerbach of East Orange, N.J. told how he and a distinguished colleague, Dr. Arthur Purdy Sout (retired professor of pathology at Columbia Uni versity's College of Physicians and Surgeons), had examined the magnified tissue slides, cell by cell. Working with them were two statisticians, Dr. E. Cuyler Hammond and Lawrence...
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