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3. Pull down internal partitions storey by storey before taking down external walls of
the respective storeys.
4. Provide canvas or other suitable screens where necessary to prevent nuisance from
dust.
5. Before and during the process of demolition and during subsequent removal all dust
and material should be freely sprayed with a hose and rose jet.
6. So far as practicable any process connected with the demolition likely to cause
nuisance from dust should not be carried out during ordinary business hours, particularly if
the building to be demolished is in a main thoroughfare.
7. On completion of demolition all necessary steps should be taken effectually to seal off
all drains so as to prevent any nuisance from rats.
Children's Country Holidays.
In connection with the arrangements made by the Children's Country Holiday
Fund, and the Fresh Air Fund, for sending children away for country holidays, we
receive and answer many enquiries during the summer months relative to the
existence of infectious diseases in the houses from which the children are drawn.
This routine co-operation between the local authority and the organisations concerned
helps to ensure that children who have been directly exposed to infection
shall not be sent away until danger of the development of disease in the contact
child is past.
Effluvia from Trade Processes.
During the year two complaints of smell were received in connection with
factories.
The first related to premises where crude rubber is worked up. When the
material ordinarily used is being dealt with no smell arises, but some "wild
rubber, also called Lagos rubber, had been purchased and this gave rise to smell.
The owner removed the Lagos rubber from premises.
The cause of the second complaint was traced to the use of sulphuretted
hydrogen for analytical purposes by a firm of manufacturing chemists. The
analytical work was transferred to the country.
Private Water Supplies.
At the latter part of the year a complaint was received respecting illness
thought to be caused by the drinking of impure water stated to have a bitter taste
and to change colour when it was boiled. The suspected water came from a private
source obtained from a well 650 feet deep. On enquiry it was found that the water
complained of had been heated in a new aluminium kettle. On boiling in this kettle
the water changed colour, but no change took place when the water was heated
in a different kettle. A sample of water from this well, after boiling in the
aluminium kettle, was examined by the Borough Analyst (Mr. J. Kear Colwell,
F.T.C.), who reported as follows: —
" I have examined the water and found it is an alkaline water having a
total solid content of 78 0 parts per 100,000.