Essays on Mankind and Political Arithmetic

by Sir William Petty

AN ESSAY IN POLITICAL ARITHMETIC

Tending to prove that London hath more people and housing than the cities of Paris and Rouen put together, and is also more considerable in several other respects.

1. The medium of the burials at London in the three last years—viz., 1683, 1684, and 1685, wherein there was no extraordinary sickness, and wherein the christenings do correspond in their ordinary proportions with the burials and christenings of each year one with another, was 22,337, and the like medium of burials for the three last Paris bills we could procure—viz., for the years 1682, 1683, and 1684 (whereof the last as appears by the christenings to have been very sickly), is 19,887.

2. The city of Bristol in England appears to be by good estimate of its trade and customs as great as Rouen in France, and the city of Dublin in Ireland appears to have more chimneys than Bristol, and consequently more people, and the burials in Dublin were, A.D. 1682 (being a sickly year) but 2,263.

3. Now the burials of Paris (being 19,887) being added to the burials of Dublin (supposed more than at Rouen) being 2,263, makes but 22,150, whereas the burials of London were 187 more, or 22,337, or as about 6 to 7.

4. If those who die unnecessarily, and by miscarriage in L’Hôtel Dieu in Paris (being above 3,000), as hath been elsewhere shown, or any part thereof, should be subtracted out of the Paris burials aforementioned, then our assertion will be stronger, and more proportionable to what follows concerning the housing of those cities, viz.:

5. There were burnt at London, A.D. 1666, above 13,000 houses, which being but a fifth part of the whole, the whole number of houses in the said year were above 65,000; and whereas the ordinary burials of London have increased between the years 1666 and 1686, above one-third the total of the houses at London, A.D. 1686, must be about 87,000, which A.D. 1682, appeared by account to have been 84,000.

6. Monsieur Moreri, the great French author of the late geographical dictionaries, who makes Paris the greatest city in the world, doth reckon but 50,000 houses in the same, and other authors and knowing men much less; nor are there full 7,000 houses in the city of Dublin, so as if the 50,000 houses of Paris, and the 7,000 houses in the city of Dublin were added together, the total is but 57,000 houses, whereas those of London are 87,000 as aforesaid, or as 6 to 9.

7. As for the shipping and foreign commerce of London, the common sense of all men doth judge it to be far greater than that of Paris and Rouen put together.

8. As to the wealth and gain accruing to the inhabitants of London and Paris by law-suits (or La chicane) I only say that the courts of London extend to all England and Wales, and affect seven millions of people, whereas those of Paris do not extend near so far. Moreover, there is no palpable conspicuous argument at Paris for the number and wealth of lawyers like the buildings and chambers in the two Temples, Lincoln’s Inn, Gray’s Inn, Doctors’ Commons, and the seven other inns in which are chimneys, which are to be seen at London, besides many lodgings, halls, and offices, relating to the same.

9. As to the plentiful and easy living of the people we say,

(a.) That the people of Paris to those of London, being as about 6 to 7, and the housing of the same as about 6 to 9, we infer that the people do not live at London so close and crowded as at Paris, but can afford themselves more room and liberty.

(b.) That at London the hospitals are better and more desirable than those of Paris, for that in the best at Paris there die two out of fifteen, whereas at London there die out of the worst scarce 2 out of 16, and yet but a fiftieth part of the whole die out of the hospitals at London, and two-fifths, or twenty times that proportion die out of the Paris hospitals which are of the same kind; that is to say, the number of those at London, who choose to lie sick in hospitals rather than in their own houses, are to the like people of Paris as one to twenty; which shows the greater poverty or want of means in the people of Paris than those of London.

(c.) We infer from the premises, viz., the dying scarce two of sixteen out of the London hospitals, and about two of fifteen in the best of Paris, to say nothing of L’Hôtel Dieu, that either the physicians and chirurgeons of London are better than those of Paris, or that the air of London is more wholesome.

10. As for the other great cities of the world, if Paris were the greatest we need say no more in behalf of London. As for Pekin in China, we have no account fit to reason upon; nor is there anything in the description of the two late voyages of the Chinese emperor from that city into East and West Tartary, in the years 1682 and 1683, which can make us recant what we have said concerning London. As for Delhi and Agra, belonging to the Mogul, we find nothing against our position, but much to show the vast numbers which attend that emperor in his business and pleasures.

11. We shall conclude with Constantinople and Grand Cairo; as for Constantinople it hath been said by one who endeavoured to show the greatness of that city, and the greatness of the plague which raged in it, that there died 1,500 per diem, without other circumstances; to which we answer, that in the year 1665 there died in London 1,200 per diem, and it hath been well proved that the Plague of London never carried away above one-fifth of the people, whereas it is commonly believed that in Constantinople, and other eastern cities, and even in Italy and Spain, that the plague takes away two-fifths, one half, or more; wherefore where 1,200 is but one-fifth of the people it is probable that the number was greater, than where 1,500 was two-fifths or one half, &c.

12. As for Grand Cairo it is reported, that 73,000 died in ten weeks, or 1,000 per diem, where note, that at Grand Cairo the plague comes and goes away suddenly, and that the plague takes away two or three-fifths parts of the people as aforesaid; so as 73,000 was probably the number of those that died of the plague in one whole year at Grand Cairo, whereas at London, A.D. 1665, 97,000 were brought to account to have died in that year. Wherefore it is certain, that that city wherein 97,000 was but one-fifth of the people, the number was greater than where 73,000 was two-fifths or the half.

We therefore conclude, that London hath more people, housing, shipping, and wealth, than Paris and Rouen put together; and for aught yet appears, is more considerable than any other city in the universe, which was propounded to be proved.