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26
ance for the differences of birth-rates in the two
cases there is a large excessive mortality in the
soft water districts. This is quite in accordance
with the facts which I submitted to your notice in
in my last annual report, and it is sufficiently
striking to command attention.
The average daily quantity of water supplied to
the metropolis during the year by the several water
companies was 103,325,660 gallons; and it ranged
from an average of 93,650,519 gallons per day in
December, 1869, to 116,293,521 gallons per day in
June last. The average number of houses supplied
was 477,262; and the particulars relating to this, as
furnished to me by the Companies for the information
of the Medical Officers of Health of London, as well
as the particulars of the water supply of Paris, so
far as they have been received, are as follows :—