Anno          Number of         Increase every
Domini.       people.           hundred years.
1300          2,800,000
1400          3,300,000             440,000.
1500          3,840,000             540,000.
1600          4,620,000             780,000.
1700          5,500,000             880,000.
1800          6,420,000             920,000.
1900          7,350,000             930,000.
2000          8,280,000             930,000.
2100          9,205,000             925,000.
2200         10,115,000             910,000.
2300         11,000,000             885,000.

Whereby it may appear that the increase of the kingdom being 880,000 people in the last hundred years, and 920,000 in the next succeeding hundred years, the annual increase at this time may be about 9,000 souls per annum.

But whereas the yearly births of the
   kingdom are about 1 in 28.95, or 190,000 souls. 
And the yearly burials 1 in 32.35 or 170,000 souls. 
Whereby the yearly increase would be 20,000 souls.

It is to be noted—­ Per ann.

1.  That the allowance for
    plagues and great mortalities
    may come to at a medium 4,000
2.  Foreign or civil wars at a
    medium 3,500
3.  The sea constantly employing 11,000 per annum.
    about 40,000, may precipitate 2,500
    the death of about
4.  The plantations (over and above
    the accession of foreigners) 1,000
    may carry away
Whereby the net annual increase may
be but 9,000 souls.

That of these 20,000 souls, which would be the annual increase of the kingdom by procreation, were it not for the before-mentioned abatements.

The country increases annually
  by procreation 20,000 souls. 
The cities and towns, exclusive
  of London, by procreation 2,000 souls. 
But London and the bills of
  mortality decrease annually 2,000 souls.

So that London requires a supply of 2,000 souls per annum to keep it from decreasing, besides a further supply of about 3,000 per annum for its increase at this time.  In all 5,000, or above a half of the kingdom’s net increase.

Mr. King further observes that by the assessments on marriages, births, and burials, and the collectors’ returns thereupon, and by the parish registers, it appears that the proportions of marriages, births, and burials are according to the following scheme

Vide Scheme A.

Whence it may be observed that in 10,000 coexisting persons there are 71 or 72 marriages in the country, producing 343 children; 78 marriages in towns producing 351 children; 94 marriages in London, producing 376 children.

Whereby it follows —

1.  That though each marriage in London produces fewer people than in the country, yet London in general having a greater proportion of breeders, is more prolific than the other great towns, and the great towns are more prolific than the country.