Summary

Portrait of William Petty William Petty Observations upon the Dublin Bills of Mortality… (1899)

The London-Observations reckon eight heads in each Family [11] ; according to which estimation, there are 32000 Souls [12] in the 4000 Families of Dublin; which is but half of what most Men imagine; of which but about one sixth part are able to bear Arms, besides the Royal Regiment.
6. Without the knowledge of the true number of People, as a Principle, the whole scope and use of the keeping Bills of Births and Burials is impaired; wherefore by laborious Conjectures and Calculations to deduce the number of People from the Births and Burials, may be Ingenious, but very preposterous.
Source: Wikisource

Portrait of William Petty William Petty Observations upon the Dublin Bills of Mortality… (1899)

It is said, that there are Eighty four thousand Houses or Families in London, which is Twenty one times more than are in Dublin; and yet the Births and Burials of London are but Twelve times those of Dublin: which shews that the Inhabitants of Dublin are more crowded and streightned in their Housing, than those of London; and consequently, that to increase the Buildings of Dublin, will make that City more conformable to London.
Source: Wikisource

Portrait of William Petty William Petty Observations upon the Dublin Bills of Mortality… (1899)

I shall also add some Reasons for altering the present forms of the Dublin-Bills of Mortality, according to what hath been here recommended, viz.
1. We give the distinctions of Males and Females in the Births onely; for that the Burials must, at one time or another, be in the same proportion with the Births.||
2. We do in the Weekly and Quarterly Bills propose, that notice be taken in the Burials of what numbers dye above Sixty and Seventy, and what under Sixteen, Six, and Two years old; foreseeing good uses to be made of that distinction.
Source: Wikisource

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