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Start Over You searched for: Subjects United States Remove constraint Subjects: United States Publication Year 1827 Remove constraint Publication Year: <span class="single" data-blrl-single="1827">1827</span>

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4. 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