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should supply water-closets only, and that no other supply
pipes should bo carried from them. The ordinary water
waste-preventing cistern answers the purpose effisiently.
Much good work has boon carried out during the past 18
months in the shape of alterations whereby buildings have
been rendered proof against the entry into them of drain and
sever air.
Your Authority, however, should not rest content until
the three following rules have in all eases, whenever possible,
been put into practice-
(1) The provision of soil pipes four inches in diameter,
fixed outside the buildings, and carried up full bore to the
tops of the houses so as to afford, by swans of their open
ends, a safe outlet for foal air.
(2) The disconnection of house drains from the sowers,
by swans of suitable traps with fresh air inlets, at a point
.
as near the severs as possible.
(3) The prevision of anti-siphonage ventilating pipes
in all cases where one soil-pipe receives the discharges of
two or more W.Cs. placed on different floors; and the carrying
up of such anti-siphonage pipes form each W.C. branch pipe to
join the veatilaters to the soil pipes.
The scavenging of the Inn, including the removal of house
refuse, has been efficiently done daily (Sundays excepted)
during the past year.