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14
estimated mid-year populations of the metropolitan boroughs in 1925 are shown
in the table on page 77.
Marriages.
Marriages registered in London during 1925 numbered approximately 39,641
or 17.2 per thousand of the population, this rate being the same as in the preceding
year.
Births.
The births in London during 1925 numbered 82,401, this being 2,746 less than
last year. The birth-rate was 17.9 per thousand of the population as compared
with 18.6 in 1924 and 20.1 in 1923. The birth-rate for each metropolitan borough
and for London as a whole will be found in the table on page 77. The London
birth-rate since 1840 is shown in the diagram on page 13. The Registrar-General's
estimate of the population of London in 1925 allows an increase of 88,000 in the
County population in the four years since the last census. During this period the
births have exceeded the deaths by about 138,000, so that there has been a loss by
the balance of the excess of emigration over immigration of about 50,000
persons.
Death

The year of lowest death-rate in London was 1923 when, as will be seen, the
deaths numbered 2,600 less than in 1925. The excess in 1925 is greatest at the
higher ages and is chiefly attributable to the relatively greater incidence of influenza
and diseases of the respiratory system.
In 52 registration weeks of 1925 there were 606 deaths in London caused by
vehicles and horses, 157 being children under 15 years of age. The corresponding
figures for 1924 (53 weeks) were 593 and 166.
The death-rates from all causes and from certain specified diseases for each
metropolitan borough and for London as a whole will be found in the table on
page 77. The annual death-rates in London since 1840 in relation to the mean
of the rates for the last 85 years are shown in the diagram on page 13.
Infant
mortality