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1ll
compared Professor Smith's recent analysis with the former ones
I am pleased to be able to report that the water shews a marked
improvement in this respect, the Nitrates, Nitrites and Ammonia
having all diminished.
3. My attention was called during the year to two improper
sources of drinking water; one a shallow well in close proximity
to a cesspool at some tea gardens, the other a spring unprotected
from surface drainage and pollution.
4. The Kent Water was already laid on at the tea gardens,
and a Magistrate's order has been applied for to close the well
The spring has been protected from pollution by masonry.
and the family who used it now obtain their drinking water
elsewhere, using the spring only for washing purposes.
Sewers and Sewer Ventilation.
5. This subject occupied the attention of the Sanitary Committee
and myself to a considerable extent last year, partly on
account of my having in my last Annual Report given reasons
for connecting the prevalence of Diphtheria with manhole ventilators,
partly on account of the large number of complaints of
nuisances from the ventilators. The long drought of the summer
left the sewers without their natural means of flushing. I
accordingly advised systematic flushing with water carts and hose,
and suggested that the provision of automatic flashing apparatus
should be considered for some sewers. At the commencement of
the year too, I strongly recommended the Board to provide shaft
ventilators as a cure for stenches from manholes, and that these
ventilators should be properly jointed and carried 5 feet above