of Christ, at which time the world might have about 1,000,000
families, and 4,000,000 or 5,000,000 people.

From which hypothesis it will follow by an orderly series of
increase -

That when the Romans invaded England fifty-three years before
Christ's time, the kingdom might have about 360,000 people, and at
Christ's birth about 400,000.

That at the Norman Conquest, A.D. 1066, the kingdom might contain
somewhat above 2,000,000.

That A.D. 1260, or about 200 years after the Norman Conquest, it
might contain about 2,750,000 people, or half the present number:
so that the people of England may have doubled in about 435 years
last past.

That in all probability the next doubling will be in about 600 years
to come, viz., by the year 2300, at which time it may have about
11,000,000 people, and the kingdom containing about 39,000,000 of
acres, there will be then about three acres and a half per head.

That the increase of the kingdom for every hundred years of the last
preceding term of doubling, and the subsequent term of doubling, may
have been and in all probability may be, according to the following
scheme:-


Anno Number of Increase every