Medical statistics, or A comparative view of the mortality in New York, Philadelphia, Baltimore, and Boston, for a series of years : including comparisons of the mortality of whites and blacks in the two former cities : and of whites, free blacks, and slaves in Baltimore / by Nathaniel Niles, Jun. ... and John D. Russ ...

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Medical statistics, or A comparative view of the mortality in New York, Philadelphia, Baltimore, and Boston, for a series of years : including comparisons of the mortality of whites and blacks in the two former cities : and of whites, free blacks, and slaves in Baltimore / by Nathaniel Niles, Jun. ... and John D. Russ ... Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)