THE PRINCIPAL POINTS OF THIS DISCOURSE.

1. THAT London doubles in forty years, and all England in three hundred

and sixty years.

2. That there be, A.D. 1682, about 670,000 souls in London, and about

7,400,000 in all England and Wales, and about 28,000,000 of acres of

profitable land.

3. That the periods of doubling the people are found to be, in all

degrees, from between ten to twelve hundred years.

Essays on Mankind and Political Arithmetic · 第 7 / 72 题