Essays on Mankind and Political Arithmetic by Sir William Petty
page 16 of 129 (12%)
page 16 of 129 (12%)
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fourteen out-parishes in Middlesex and Surrey, contiguous to the
former, all which, 133 parishes, are comprehended within the weekly bills of mortality. The growth of this city is measured. (1) By the quantity of ground, or number of acres upon which it stands. (2) By the number of houses, as the same appears by the hearth-books and late maps. (3) By the cubical content of the said housing. (4) By the flooring of the same. (5) By the number of days' work, or charge of building the said houses. (6) By the value of the said houses, according to their yearly rent, and number of years' purchase. (7) By the number of inhabitants; according to which latter sense only we make our computations in this essay. Till a better rule can be obtained, we conceive that the proportion of the people may be sufficiently measured by the proportion of the burials in such years as were neither remarkable for extraordinary healthfulness or sickliness. That the city hath increased in this latter sense appears from the bills of mortality represented in the two following tables, viz., one whereof is a continuation for eighteen years, ending 1682, of that table which was published in the 117th page of the book of the observations upon the London bills of mortality, printed in the year 1676. The other showeth what number of people died at a medium of two years, indifferently taken, at about twenty years' distance from each other. The first of the said two tables. |
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