1. 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 Author(s): Niles, Nathaniel, Jr., 1791-1869 Publication: New York : Published by Elam Bliss ... J. Seymour, printer ..., 1827 Subject(s): MortalityStatistics as TopicUnited States
