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, 1899.All results are expressed in grains per gallon.(1) Chemical Examination.

TABLE VII.—Report of Analyses of "Water supplied to the Parish during January, 1899.

All results are expressed in grains per gallon.

(1) Chemical Examination.

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 2120 Fahr.Before boiling.After boiling.
West Middlesex Water January, 1899Clear, & pale yellow.1.3s. Trace•1300.000•0029•0220.200015.43.720.0
—Average composition for JanuaryDo....1.3,,•1420•0016•004•0357•152117.74.521.1
Grand J unction Water January, 1899Do....1.39 9•2411.0005.0047•0311•182118.64.921.2
—Average composition for JanuaryDo....1.3, ,.1620•0006•0044.0444•172218.74.820.1

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(2) Microscopical Examination,
Deposit small. Mostly mineral matter. No life'
absence of organised fibres.

Table: (3) Bacteriological Examination.Mr. Meredith Blyth, B.Sc. (Lond.), reports in a tabular form as follows:—

(3) Bacteriological Examination.

Mr. Meredith Blyth, B.Sc. (Lond.), reports in a tabular form as follows:—

Total number per c.cs.Spore-bearing organisms in 10 c.cs.Total number of organisms growing on phenol-gelatine.Bacillus Coli Communis.Bacillus Sporogenes Enteritidis (Klein.)
January. Grand Junction421031--
West Middlesex36220--