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or other defects in the building, the owner is called upon to effect the
necessary repairs. This aspect of the work involves close co-operation
between the Rodent Control Staff and the Public Health Inspectors.
In the case of private dwellings the work of disinfestation is carried out
by the Rodent Control Staff free of cost, and on request at business
premises, where the cost is charged in full.
The baiting of sewers under the control of the Council is undertaken
three times during the year. Similar work is carried out by all London
Boroughs, and has the result of reducing the rat population not completely,
but to an irreducible minimum.

The total number of visits made to the above premises, and
to others which were found not to be infested, was 3,757.
Verminous Premises.
During the year 269 premises which were found to be infested
with vermin were disinfested. The insecticide used contains Pybuthrin
and Lindane/D.D.T. and gives a prolonged residual effect.
Dangerous Structures.
During the course of inspection for any purpose carried out by
the officers of the Department, should any dangerous structure or
any dangerous condition appertaining to a building be noticed, the
Disstrict Surveyor of the London County Council is notified for any
action he may decide to take. 53 such cases were notified.
Rag Flock and Other Filling Materials Act, 1951.
The principal provisions of the Act relate to the registration of
premises in which rag flock or other materials are used in upholstery,
etc., and the licensing of premises used for the manufacture and storage
of rag flock. An authorised officer of the Council has the right of
entry. inspection and sampling of any filling materials. The Medical
Officer of Health and Public Health Inspectors are deemed to be
authorised officers.
Regulations made by the Minister prescribe the standard of cleanliness
for each kind if filling material, the method of testing samples, and the
nature of the tests to be applied. New Regulations in this connection