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possible to efficiently treat the sewage on the old amount of land.
A very large sum has also been expended in thoroughly cleansing
the old land filter beds, which were left by the late Company in a
very bad state. In order to do this the surface of the filters was
dug up to a depth of 6 inches, and the soil and weeds burnt, the
resulting ballast being afterwards spread over the surface. On
the top of this was put 3 inches of the best Leighton Buzzard
sand. The area of filters so done amounts to 4 acres. Besides
these filters the Council have brought from the International
Company their own polarite filters which were in use, and so are
carrying on the polarite system as before with the addition of the
large area of sand and ballast filters before mentioned. The
effluent now turned out is a very good one, and owing to the large
surface of filters all the sewage is able to be efficiently dealt with.
Formerly, owing to the polarite filters being so small, only about
one-fifth of the clarified effluent was able to be treated, the
remaining four-fifths having to pass through the absolutely then
useless land filters. The sludge is being dealt with by passing it
over the land on which is grown various crops. The sludge
pressed varies according to the time and weather, and also
according to the state of the land whether it is fit to receive it.
Numerous samples of the effluent have been analysed by me, and
found in most cases to comply with the requirements of the
Rivers Pollution Act.
INFECTIOUS DISEASES HOSPITAL.
Sixty patients were admitted to the Hospital during the
year; thirty-five females and twenty-five males. Fourteen were
under 5 years of age, and 45 over 5 years of age.
The following were admitted from the different districts :—
Hendon (Central) 7
West Hendon 6
Golders Green 5
Temple Fortune 5
Child's Hill 23
Cricklewood 7
Mill Hill 7