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the purpose of ventilating the London County Council's
sewer in Battersea Park Road. The remaining 20 were
erected by the1 Borough Council, to ventilate their sewers,
situate as follows :—
Albert Bridge Road.
Battersea Square.
Boutflower Road.
Castle Street.
Clapham Common West Side.
Clapham Common North Side (2).
Emma Street (3).
Harroway Road.
Juer Street.
Knowsley Road.
Queens Road.
St. John's Hill (2).
St. James' Road.
Wilson Street.
Wandsworth Common (2).
During the year complaints were occasionally received of
the nuisance arising from sewer ventilators on the surface of
the roadway. These complaints were in every case enquired
into, and ventilating columns were erected to mitigate the
nuisance in the localities which gave cause for complaint.
During 1906 19 of these shafts had been erected, making a
total of 40 during the past two years.
It is to be hoped that the efforts which the Council have
made to prevent nuisances arising from sewer emanations will
meet with success. The problem of sewer ventilation is a
troublesome one, and a good deal of controversy has taken
place as to the best method of dealing with the subject. All
sanitarians are, however, agreed that the more efficiently the
sewers are ventilated, the less likelihood is there of a nuisance
arising. In well laid, well built, properly ventilated and frequently
flushed sewers sewer gas is very rarely given off. The
provision of a greater number of open ventilating grids in the