Front Page Titles (by Subject) CHAP. II.: The State of the Case represented in Terms of Number, Weight, and Measure; and thereby made capable of Demonstrations. ( vizt ) - The Economic Writings of Sir William Petty, vol. 2
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CHAP. II.: The State of the Case represented in Terms of Number, Weight, and Measure; and thereby made capable of Demonstrations. ( vizt ) - Sir William Petty, The Economic Writings of Sir William Petty, vol. 2 
The Economic Writings of Sir William Petty, together with The Observations upon Bills of Mortality, more probably by Captain John Graunt, ed. Charles Henry Hull (Cambridge University Press, 1899), 2 vols.
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The State of the Case represented in Terms of Number, Weight, and Measure; and thereby made capable of Demonstrations.(vizt)
1. WE suppose England and Wales to consist of about 36 Millions of Statute Acres and Ireland of about half the same Number.
2. That in England, Wales, Jersey, Guernsey, and the Isle of Man, are 25 Thousand Roman Catholicks, Men, Women, and Children: and 7 Millions and 75 Thousand of all other Perswasions.
3. That in Ireland are 1300 Thousand People; whereof 8 of 9 are Roman Catholicks. (vizt) 145 Thousand Non-Catholicks of all Sorts, and 1155 Thousand Catholicks1 .
4. That the Rents of the Lands of Ireland, are about 1200 Thousand Pounds per Ann. and those of England about 11 Millions.
5. The Rents in England are worth 20 Year's Purchase, and those of Ireland (Ano. 1687) about 10 Years.
6. That the Territory of Ireland will Breed and Feed 6 Millions of Beeves of 3-years-old apiece; or the Equivalent in other Species of Cattle.
7. That 300 Thousand Herdsmen and Dairy-Women are sufficient to manage the Trade of the said Cattle.
8. That amongst Beeves, or great Cattle, ¼ Part are, or may be, Milch-Cows; and that ⅕ part of the whole may be slaughter'd every Year, without Prejudice to the main Stock.
9. That as many Cattle as Ireland will breed, are worth about 6 Millions of Pounds.
10. That 4000 Men at Sea, 2000 Horse, and 15000 Foot at Land, being the of the 150 Thousand Heardsmen, supposed to be left in Ireland, is a sufficient Guard for that Kingdom, and more proper than what has ever yet bin instituted, and a good Beginning of a real Mare Clausum.
11. That the Expence of the People in Ireland, at a Medium, is 5l. per Head, and in England 6l. 13s. 4d. per Ann.
12. That the Value of all Houses in Ireland, and Goods not fit to be brought into England, or to be used in the Cattle-Trade, is about 2 Millions.
13. That the Maintenance of as many Divines, as are fit for 300 Thousand Heardsmen &c. above mention'd, need not be above 20 Thousand Pounds per Ann. So as a 100 Thousand Pounds per Ann. of the Church Revenues in Ireland, may be brought into England, for Church-Uses.
14. That England never got out of Ireland 200 Thousand Pounds per Ann. nor (till of late) any Revenue at all to the King.
15. That now Ireland will send into England directly, or into Foreign Parts (which at last will terminate in England) at least 1500 Thousand Pounds per Ann.
16. That 20 Shillings may serve, with good Method and Order, to bear Travelling Charges of Men, Women and Children, one with another, from the Middle of Ireland to the Middle of England; being about 120 Miles by Land.
17. That when the Trade of 6 Millions-worth of Cattle is made so Simple, Easy, and Constant, in the Breeding, Feeding, and Vending the same; the Value of the said Stock of Cattle must needs be rais'd thereby to at least ⅙ Part more, and become worth 7 Millions; especially if the Interest of Money shall fall from 3 to 2, or from 10 per Cent. to 6l. 13s. 4d.
18. When there shall be but 300 Thousand Souls in Ireland, and those all Herdsmen and Dairy-Women (whereas there are now 1300 Thousand of higher Quality) the Charge of the Clergy there will not be so great by 100 Thousand Pounds per Ann. as now: It being now about 120 Thousand Pounds per Ann. in Church-Lands, and appropriate Tyths.
19. The Charge of the Civil Government in Ireland, under the Paucity and Simplicity of the People above-mentioned, being but1 a Kind of Factory, needs be but ⅕ of what it is at present, or about 5000 Thousand £ per Ann. For then the horrible Expence of Law-Suits will be almost abolish'd.
20. The King's Revenue of England is suppos'd to be 1800 Thousand Pounds per Ann. That of Ireland 270 Thousand neat: And that of Scotland 130 Thousand; In all 2 Millions 2 hundred Thousand Pounds.
A variation from the estimate of 1672, Polit. Anat., p. 142, note.
‘but’ inserted by Petty.