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

Walthamstow 1951

[Report of the Medical Officer of Health for Walthamstow]

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Table: The following summary gives the comparative results of the old standard test and the new (provisional) test. Grades I and II of the latter are considered satisfactory.

The following summary gives the comparative results of the old standard test and the new (provisional) test. Grades I and II of the latter are considered satisfactory.

Place CountColiform Reaction (in 1/10 ml.)Bacterium coli (in 1/10 ml.)Satisfactory*PassableNot PassableMethylene Blue Test
Reduction timeGrade
100––XNot in 4 hoursI
180––X„ 4 „I
200––X„ 4 „I
700––X„ 4 „I
200––X„ 4 „I
400––X„ 4 „I
200––X„ 4 „I
3,700xl tube–X„ 4 „I
900––X„ 4 „I
1,400––X„ 4 „I
9,200––X„ 4 „I
900––X„ 4 „I
600x1 tube–X„ 4 „I
1,100––X„ 4 „I
400––X„ 4 „I
3,000––X„ 4 „I
700––X„ 4 „I
1,500––X„ 4 „I
1,500––X„ 4 „I
300––X„ 4 „I
300––X„ 4 „I
200––X„ 4 „I
800––X„ 4 „I
300––X„ 4 „I
500––X„ 4 „I
600––X„ 4 „I
1,600––X„ 4 „I
900––X„ 4 „I
3,600––X„ 4 „I
600––X„ 4 „I
1,200––X„ 4 „I
2,000––X„ 4 „I
500––X„ 4 „I
3,000––X„ 4 „I
3,500––X„ 4 „I
1,200––X„ 4 „I
1,500––X„ 4 „I
1,200––X„ 4 „I
2,000––X„ 4 „I
1,700x2 tubes–X„ 4 „I
500––X„ 4 „I
900––X„ 4 „I
1,200––X„ 4 „I
1,500––X„ 4 „I
600––X„ 4 „I
600xl tube–X„ 4 „I
900––X„ 4 „I
2,100––X„ 4 „I
300––X„ 4 „I
800––X„ 4 „I
1,500x1 tube–X„ 4 „I
300––X„ 4 „I
700––X„ 4 „I