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 1898

[Report of the Medical Officer of Health for St. Marylebone]

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Table: TABLE VII.—Report of Analyses of Water supplied to the Parish during January, 1898. All results are expressed in grains per gallon.

TABLE VII.—Report of Analyses of Water supplied to the Parish during January, 1898. All results are expressed in grains per gallon.

Description of Sample.Appearance in Two-feet Tube.Smell when heated to 100° Fahr.Chlorine.Phosphoric Acid.Nitrogen as Nitrates.Ammonia.Albuminoid Ammonia.Oxygen, absorbed inHardness, Clark's scale, in degrees.Total solid matter dried at 220° Fahr.
15 minutes atordn. tem.1 hour at 212° Fahr.Before boiling.After boiling.
West Middlesex Water January, 1898Clear, & pale yellow....1.4S. Trace1300.0006.0035.0220.200018.94.922.8
—Average composition for January, 1898Do....1.3,,1422.0006.004.0360.148017.84.620.9
Grand Junction Water January, 1898Do....1.3,,1577.0007.0049.0320.172019.05.222.0
—Average composition for January, 1898Do....1.28,,1600.0006.0046.0427.162118.64.521.0

Table: TABLE VIII.—Illuminating Power, Pressure, and Quality of the Coal Gas consumed in the Parish during January, 1898.

TABLE VIII.—Illuminating Power, Pressure, and Quality of the Coal Gas consumed in the Parish during January, 1898.

JANUARY, 1898.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 100 cubic feet.Sulphuretted Hydrogen.
—*Mean of observations.Highest.Lowest.Highest.Lowest.Grains.Grains.
common gas16.516.816.133.715.511.10.09None.
Average for January16.416.816.134.015.712.20.10None.