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notified to me, to carry out the wishes of the Local Government
Board as expressed in the above letter, and to inform the Board
of the measures adopted in each case. Since receiving these instructions,
I have not received any notification for this disease. 1
may add, that it has always been my practice to visit the homes
of such cases on their notification, in order to be certain that proper
measures were adopted to prevent the spread of the disease.
RIVER LEA.
As regards the quality of the water of this river as it passes
through Hackney it remains in much the same condition as during
the previous year. It needs great amendment. This is shown
by the following report of the Public Analyst on a sample of water
taken from the river near the London County Council bathing
pool, or. November 1st of last year:—
Report on a sample of water received from the Hackney Vestry
marked Lea Water, taken near new bathing lake, Hackney Marshes
at 2.45 p.m., November 1st, 1895. Received November 2nd, 1895.
Total solid residue 40.7 grains per gallon.
Organic and volatile matter 9.7 ,, ,,
Mineral Residue 31.0 ,, ,,
Dissolved solids 37.6 „ „
Suspended matter 3.1 ,, „
Saline ammonia 728 ,, „
Organic ammonia .063 „ ,,
Oxygen required to oxidise the organic
matter 241 ,, „
Chlorine 4.3 „ „
Nitrates and Nitrites very slight traces.
Phosphoric Acid very slight traces.
The sample was free from Sulphuretted Hydrogen, and possessed
a faint earthy smell; when viewed in a white basin one inch deep
it was slightly yellow in tint.
The above figures indicate considerable pollution.
LEO. TAYLOR, F.I.C., Public Analyst.