Vital Statistics of Boston

1867 Boston Medical and Surgical Journal  
Geneva, in Switzerland, where an accurate record of the population, births and deaths has been kept for more than three centuries past, or since the year 15G0. By a series of historical and statistical c.epilations, M. Mallet has ascertained that from the year 1500 to the year 1G00, the mean duration of the lives of the
doi:10.1056/nejm186703280760809 fatcat:m57w3g5pzvg6bgzfeok75pfe2q