London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Marylebone 1896
The sanitary chronicles of the Parish of St. Marylebone being the annual report of the Medical Officer of Health for the year 1896
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TABLE VII.— Report of Analyses of Water supplied to the Parish during
January, 1896. All results are expressed in gbains pee gallon.
Description
of Sample.
Appearance in Twofeet
Tube.
Smell when heated to
100° Fahr.
Chlorine.
Phosphoric Acid.
Nitrogen as Nitrates.
Ammonia.
Albuminoid Ammonia.
Oxygen, i
absorbed
in
Hardness,
Clark's scale,
in degrees.
Total solid matter
dried at 20° Fahr.
15 minutes
atordn. tem.
1 hour
at 212° Fahr.
Before boiling.
After boiling.
West Middlesex Water
Clear,
& pale
yellow.
...
1.3
s.
Trace
.1850
.0013
.0037
.0244
.1972
21.2
5.6
23.2
Average composition for
January
Do.
...
1.27
,,
.1542
.0005
.004-1
.0449
.1360
15.2
3.9
19.7
Grand Junction Water
Do,
...
1.22
,,
.1870
.0009
.0035
.0221
.1912
21.0
6.0
22.0
Average composition for
January
Do.
...
1.25
,,
.1570
.0006
.0049
.0510
.1710
15.15
3.9
19.9
TABLE VIII.—Illuminating Power, Pressure, and Quality of the Coal
Gas consumed in the Parish during January, 1896.
JANUARY,
1896.
Illuminating Power
in
Sperm Candles.
Mean
Pressure in
tenths of an
inch.
Mean
Quantity
of Sulphur
in 100
cubic feet.
Mean
Quantity of
Ammonia
in loo
cubic feet
Sulphuretted
Hydrogen.
*Mean of
observations.
Highest. .
Lowest.
Higliest.
Lowest.
Grains.
Grains.
COMMON GAS
16.2
16.0
16.4
34.4
15.5
12.0
.05
Average for January
16.4
16.1
16.7
34.0
16.0
13.7
.20