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

London County Council 1904

[Report of the Medical Officer of Health for London County Council]

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Table: Table I.—Showing the results of the Bacteriological Examination of Tarious samples of water collected in connection with different watercress beds.

Table I.—Showing the results of the Bacteriological Examination of Tarious samples of water collected in connection with different watercress beds.

Number of Sample.B. Coli test. Number of b. coli or coli-like II icrobes.B. enteritidis sporogenes test. " Enteritidis change" in anaerobic spore-milk cultures.Remarks.
100 c.c.10 c.c.1 C.C..1 c.c.*.01 c.c..001 C.C..0001 C.C..00001 C.C.10 c.c.1 C.C..1 C.C..01 c.c..001 c.c.
*I.aginac +L Yflagina† +_...............+-.........No streptococci found in 0.1 c.c. (D and C plates).
* II.flaginac +flaginac +flaginac +flaginac +flaginac +flaginac +-...++++...Streptococci (?) in .001 c.c. Doubtfully of human fæca origin. (D and C plates).
*III.flagac +flaginac +flaginac +flaginac +[ + f]flaginac +flaginac +—+++-...Streptococci (?) in .01 c.c. Doubtfully of human ffecal origin. (D and C plates.)
IV.aginac +SLflaginac +fl(ag) +flaginac +flag +flaginac +......++++-Do. do.
* V.flaginac +flaginac +flaginac +flaginac +-.........+-.........Streptococci (?) in .1 c.c. Doubtfully of human fsecal origin. (D and C plates.)
§ VI.flaginac +...........................No streptococci in .1 c.c. (D and C plates.)
§ VII.-.....................-............Do. do.
§ VIII.-............-.........Do. do.
* IX.A (ag) +(in) +flaginac +flaginac +............+-.........Do. do.
* X.flaginac +flaginac +flag (ac) +flaginac +flaginac +flaginac +—...++—......Do. do.
* XI.(fl) aginac +.flaginac +flaginac +flaginac +aginac +flaginac +flaginac +-+++-...Do. do.
§ XII.-.....................-............Do. do.
§ XIII.-.....................-............Do. do.

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* Topographical conditions unsatisfactory. § Topographical conditions satisfactory. [ +¶] Signifies that acid and gas formation occurred in the primary medium, but that na coli-like
microbes could be found in the secondary plate cultures.
† The significance of these letters is explained under " methods."