On the best modes of representing accurately, by statistical returns, the duration of life, and the pressure and progress of the causes of mortality amongst different classes of the community, and amongst the populations of different districts and countries / by Edwin Chadwick.

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On the best modes of representing accurately, by statistical returns, the duration of life, and the pressure and progress of the causes of mortality amongst different classes of the community, and amongst the populations of different districts and countries / by Edwin Chadwick. Public Domain Mark. Source: Wellcome Collection.

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