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15
well waters. The Thames water delivered in London has also, as
regards organic purity, greatly improved of late years, The average
proportion of organic matter contained in the waters of the two companies
was—
New River l.6
West Middlesex 2.9
The two companies provide for a daily examination of the quality
and composition of the water by Sir William Crooks, F.R.S., and
Professor Dewar, and in no way interfere with their position as absolutely
independent scientific authorities.
These reports are afterwards sent to General II. de C. Scott, the
water examiner appointed under the Metropolis Water Act, 1871, and
these reports are published monthly, together with the analysis made by
Professor Frankland on behalf of the Local Government Board.
The attention of householders should be directed to the periodical
cleansing of cisterns, and the providing of well fitting covers to exclude
light and dirt.
The numerous and important duties devolving upon the chief
inspector and the divisional inspectors havo been carried out with
energy, of which the best record is found in the account of the past
year's work. I take this opportunity to thank the various officers of
tho Vestry for the necessary information which I have received from
them, and I gladly acknowledge the assistance I have derived from the
late chairman of the Public Health Committee in carrying on the work
of the Public Health Department.
I am, Gentlemen,
Your obedient servant,
EDMUND GWYNN, M.D.,
Medical Officer of Health.