Observations medical and political, on the small-pox, and the advantages and disadvantages of general inoculation, especially in cities : and on the mortality of mankind at every age in city and country; with a comparative view and regular tables of all the fatal diseases and casualties in London, during the last one hundred and five years, ... To which is added a postscript, containing the sketch of an easy plan for new modelling and essentially improving the London bills of births and mortality ... / by W. Black.

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Observations medical and political, on the small-pox, and the advantages and disadvantages of general inoculation, especially in cities : and on the mortality of mankind at every age in city and country; with a comparative view and regular tables of all the fatal diseases and casualties in London, during the last one hundred and five years, ... To which is added a postscript, containing the sketch of an easy plan for new modelling and essentially improving the London bills of births and mortality ... / by W. Black. Public Domain Mark. Source: Wellcome Collection.

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