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23
District.
on every occasion when samples were drawn from them,
the water issuing from No. 4 on September 9th being
absolutely sterile; but filter No. 8 yielded on 4 out of
10 occasions unsatisfactory results." As to the Lambeth
Company.
"Excepting in June and December this Company
delivered water of excellent bacterial quality, the infraction
of the standard in June being the only serious one;
but, even in this month of abnormal results, the number
of microbes was much less than that found in the water
of three of the other Thames Companies."
In other words the filtration has not been on all
occasions efficient by Prof. Frankland's standard.