(4) From the unhealthfulness of the coal smoke.

(5) From a greater inequality of age between the husbands and wives.

(6) From the husbands and wives not living so long as in the
country.

He further observes, accounting the people to be 5,500,000, that the
said five millions and a half (including the transitory people and
vagrants) appear by the assessments on marriages, births, and
burials, to bear the following proportions in relation to males and
females, and other distinctions of the people, viz.:-


SCHEMA A


People Annual Marriages
Producing

children
In all each

530,000 London and bills of mortality 1 in 106 5,000 4.0
870,000 The cities and market towns 1 in 128 6,800 4.5
4,100,000 The villages and hamlets 1 in 141 29,200 4.8
5,500,000 1 in 134 41,000
4.64

Annual Births Annual Burials