Having thus found the houses, I proceed next to the number of
families in them, and first I thought that if there were three or
four families or kitchens in every house of Paris, there might be
two families in one-tenth of the housing of London; unto which
supposition, the common opinion of several friends doth concur with
my own conjectures.

As to the number of heads in each family, I stick to Grant's
observation in page --- of his fifth edition, that in tradesmen of
London's families there be eight heads one with another, in families
of higher ranks, above ten, and in the poorest near live, according
to which proportions, I had upon another occasion pitched the medium
of heads in all the families of England to be six and one-third, but
quitting the fraction in this case, I agree with Monsieur Auzout for
six.

To conclude, the houses of London being 105,315 and the addition of
double families 10,531 more, in all 115,846; I multiplied the same
by six, which produced 695,076 for the number of the people.


The Second Way.


I found that the years 1684 and 1685, being next each other, and
both healthful, did wonderfully agree in their burials, viz., 1684
they were 23,202, and A.D. 1685 23,222, the medium whereof is
23,212; moreover that the christenings 1684 were 14,702, and those
A.D. 1685 were 14,730, wherefore I multiplied the medium of burials
23,212 by 30, supposing that one dies out of 30 at London, which