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pool, a smaller one for children and another for paddling.
The water is kept- pure hy restricting entry to the
main pool except through foot baths, and the modern
system of purification by circulation of water through
filters, automatic treatment with chlorine and ammonia
gas and final oxygenation in the heating chamber and
the cascade.
Samples of water have been taken by this Department
from time to time, and the results of bacteriological
examination have been satisfactory on each occasion.
Results.
No. of organisms per c.c. capable of B. Coli
growing on agar at (presumptive)
-37° C. 22° C.
Deep end 0 0-15 Absent in
Shallow end 0-1 0-2 100 c.c.'s
(vii) Eradication of Bed Bugs.
For tenants removed from houses which are the subject
of Demolition Orders, to Council Estates, the Council
has resolved to disinfest the furniture. The work is
carried out by a contractor and hydrogen cyanide gas is
used. Although the use of this gas under the precautions
taken is probably safe, a gas fatal to the bug, but harmless
to man is needed and it appears from recent experiments
that we may not have much longer to wait before
such a gas will he found and proven efficient.
The Council has also resolved that where houses to be
demolished under the Housing Acts are found to be infested,
they shall be disinfested where possible. Pending
the production of a more suitable substitute, hydrogen
cyanide will be used and the work done by a contractor.
Where Council houses are found to be infested, the
skirting boards, picture rails and architraves, and other
similar woodwork, are stripped from the walls and these
places treated with a blow lamp, and after sealing the
rooms the house is treated with sulphur dioxide vapour.
The house is similarly treated after 14 days. In some
cases one treatment has been reported to be efficient.
This method has been found to be fairly successful,
but it is cumbersome and expensive and can only
be properlv done when the house is vacant. This work
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