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15
or other animals in Great Britain; the slaughter of cattle
affected with plague; the payment of compensation for the
same; and the isolation of premises. It also provides that
the term contagious or infectious diseases shall include pleuropneumonia,
foot and mouth disease, sheep-pox, sheep-scab,
glanders, and any disease which the Privy Council may
declare to be contagious. By an Order in Council, 30th
June, 1873, farcy was added to the number. The number
of outbreaks of glanders in the Metropolis during the year
amount to 175.
Water Supply.—The average daily supply of water
by the several Companies to the whole of the Metropolis
during the year 1873, was 111,298,027 gallons.
The average quantity of water per head was 33.4 gallons
daily; and 502,460 houses were supplied.
Of the above quantity the Lambeth Company supplied
12,000,000, and the Kent Company between 3,000,000 and
4,000,000 gallons daily.
The two latter Companies are those which supply this
district; the former, from the Thames above Moulsey, the
latter from the Chalk Wells, at Deptford, &c.
The undermentioned is the chemical composition of the
water, as given by Dr. Letherby: —
Water
Companies.
Total
solid
matter
per
gallon.
Common
salt.
Oxygen
required
by
organic
matter.
Nitrogen.
Hardness.
As
nitrates,
&c.
As
ammonia.
Before
boiling.
After
boiling.
Lambeth
19.28
1.83
0.073
0.117
0.002
14.9
3.6
Kent
28.25
2.62
0.007
0.224
0.000
21.0
5.8
The saline matter has in all cases consisted principally
of carbonate of lime with a little carbonate of magnesia,
sulphate of lime, nitrate of magnesia, and chloride of sodium
amounting to 2.62 grains per gallon of the Kent water, and
and about 1¾ grains per gallon of the Lambeth water. The