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15
Meteorology.
The mean temperature of the air during the year was 48.7°
F. ; the mean of the 1st quarter having been 37.3°, of the 2nd
52.9°, of the 3rd 60°, and of the 4th 44.6° ; the mean height of the
Barometer was 29.778 inches ; the rain fall amounted to 25.24
inches, 5.43 inches having fallen in the 1st quarter, 4.10 in the 2nd,
8.19 in the 3rd, and 7.52 in the 4th. Rain fell on 154 days.
Water Supply.
The East London Water Company supplies the greater portion
of your district, a small portion only being supplied by the New
River Company. Regarding these sources of supply, Professor
Frankland says in his Report on the Analyses of the Waters supplied
by the Metropolitan Water Companies during 1881—"The Water
drawn from the Lea was throughout the greater part of the year
considerably less polluted than that derived from the Thames; the
New River Company's supply being, as a rule, of superior quality
to any of the Thames Waters, whilst that of the East London
Company usually ranked with the better classes of Thames Water.
Indeed, this Company occasionally abstracts a portion of its supply
from the Thames at Sunbury. In January and February, however,
the Water supplied by these Companies was of very inferior quality,
as was that supplied by the East London Company in March."