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The Extract of a Letter concerning the scope of an Essay intended to precede Another Essay concerning the Growth of the City of (London), &c. An Essay in Political Arithmetick, concerning the Value and Encrease of People and Colonies.

THE scope of this Essay, is concerning People and Colonies, and to make way for Another Essay concerning the Growth of the City of London. I desire in this first Essay to give the World some light concerning the Numbers of People in England, with Wales, and in Ireland; as also, of the || number of Houses, and Families, wherein they live, and of Acres they occupy.

2. How many live upon their Lands, how many upon their Personal Estates, and Comerce, and how many upon Art, and Labour; how many upon Alms, how many upon Offices and Publick Employments, and how many as Cheats and Thieves; how many are Impotents, Children, and decrepit Old men.

3. How many upon the Poll-Taxes in England, do pay extraordinary Rates, and how many at the Level[1].

4. How many Men and Women are Prolifick, and how many of each are Married or Unmarried.

5. What the Value of People[2] are in England, and what

  1. See Treatise of Taxes, p. 62, note.
  2. Petty reckons the "value of people" variously at more than £60, Two Essays, post, at £69, Verbum Sap., p. 108, at £70, Polit. Anatomy, p. 152, Treatise of Ireland, post, and this Essay, p. 476, and at £80, Polit. Arith., p. 267.