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Many types of precipitin test for tuberculosis based on the use of tuberculin and various extracts have been developed by previous investigators. In general these tests have been unsatisfactory because of their lack of specificity. In 1929 Doan' reported a precipitin test for tuberculosis in which the phosphatide fraction isolated from the tubercle bacillus… (More)
Jean DuMortier from whom he received a rich physical and mental' inheritance. His early education was received in the Norwalk public schools and at Harstrom's Preparatory School. He went to Williams College for two years, where he creditably participated in athletics-swimming, track, and football. His last two years of college were spent at Columbia… (More)