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59
disturbing influence of several public institutions which it
is necessary to take into consideration. Thus, the mortality
of the Surrey County Lunatic Asylum, St. Peter's
Hospital, and the Hospital for Incurables, the inmates of
which institutions are derived from without the parish,
undergo no natural increase and suffer a high mortality,
constituted considerably more than one fourth (26.3 per
cent.) of all the registered deaths, so that a rate so derived
must be obviously unduly raised by the causes referred to.
On the other hand the register contains no record of the
deaths of Wandsworth parishioners who died in the
Infirmary of the Union. In order to obtain satisfactory
data therefore for the determination of the natural deathrate
it becomes necessary to withdraw from the calculation
the population and mortality of the institutions referred to,
and to add to it the deaths of Wandsworth parishioners
which have occurred in the Union Infirmary during the
year. The death-rate of the past year determined in the
manner indicated was 14.41 per lOOO or 2.59 per 1000 less
than that of the healthiest rural districts.
Birth-rate.—The births registered were 718 in
number; 386 were of males and 332 of females. The
birth-rate calculated on the foregoing estimate of the
population corrected for institutions was 30.53 per 1000
persons living of all ages; and the rate of natural increase
16 .12 per 1000.
The following Table contains a summary of all the
causes of death arranged in accordance with the classification
of the Registrar-General, showing the sex, social
position and age at death at different periods, and particularizing
the several diseases of the Zymotic class:—