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98
area in which they occurred, a course which would render the
death.rates of districts containing large military hospitals
meaningless, or to the area of residence. An attempt made to
pursue the latter course has had to be abandoned owing to
military authorities ha\ing been unable to furnish to the registrars
the necessary information. It has been found necessary, therefore,
to limit the tabulation of deaths by local areas to deaths of
civilians, and, under these circumstances, the civilian population
is obviously the proper one to use for the calculation of death.
rates.
The official method by which the estimates of civil population
have been derived from the National Register returns may now be
described.
The ratio of the total population, less the males aged 15.65
years, to the number of females aged 15 to 65 years at the date
of the Census, was calculated for each administrative area, and
this ratio was applied to the number of females on the National
Register; the resulting product, plus the number of males aged
15 to 65 years on the National Register, was taken to be the
number of the civil population of the district. A small adjustment
was necessary in order to make the sum of the estimates
for the several districts equal to the estimate for the country as
a whole made on the same basis. Further, the population in
institutions was not registered, and this (taken to be the same in
the aggregate for England and Wales at Census date), together
with a number of persons of no fixed abode, were distributed
evenly over the whole country.
The estimated population for each of the Sub.districts is as
follows
The Northern Division, of the Borough (lying North of the
middle line of Church Street) has a population of about 17,005;
an 1 in the Southern Division the population is approximately
33,5 22.
The natural increase of population by excess of births over
deaths during the year amounted to 193, as against 408 in the
preceding year.