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Raymond Pearl was born in Farmington, New Hampshire. He received his A.B. in 1899 from Dartmouth College and his Ph.D. in 1902 from the University of Michigan. He studied in Europe from 1905 to 1906, and returned to the United States to become an instructor at the University of Pennsylvania. In 1907, he was made head of the department of biology at the Maine Agricultural Experiment Station.

In 1918, he came to Baltimore to become professor of biometry at the Johns Hopkins University School of Hygiene and Public Health. Pearl was chief statistician at the Johns Hopkins Hospital from 1919 to 1935 and professor of biology at the Johns Hopkins University School of Medicine from 1923 until his death. From 1925 to 1930, he was director of the institute for biological research and founded the Constitution Clinic. Pearl advanced support for the use of statistical analysis in medicine and biology. He pioneered studies in longevity, changes in world population, and genetics.

Scope and Content

The Raymond Pearl Collection covers his years as director of the institute for biological research. Series include correspondence, news clippings, slides, negatives, and patient records with an index. The bulk of the records are from the Constitution Clinic and the Longevity Study.

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