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 1952

[Report of the Medical Officer of Health for Walthamstow]

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Plate CountColiform Reaction (in 1/10 ml.)Bacterium Coli (in 1/10 ml.)Very SatisfactoryPassableNot PassableMethylene Blue Reduction TimeTest Grade
1,200xl tube—XNot in 4 hrs.I
300——X„ 4 „I
6,000xl tube—X„ 4 „I
200——X„ 4 „I
1,200——X„ 4 „I
1,900——X„ 4 „I
600——X„ 4 „I
1,600——X„ 4 „I
1,800xl tube—X„ 4 „I
1,200——X„ 4 „I
2,700xl tube—X„4 „I
5,500xl tube—X„ 4 „I
3,000——X„ 4 „I
900——X„ 4 „I
1,500——X„ 4 „I
4,500xl tube—X„ 4 „I
400xl tube—X„ 4 „I
100——X„ 4 „I
300——X„ 4 „I
200xl tube—X„ 4 „I
800——X„ 4 „I
100——X„ 4 „I
6,000xl tube—X„ 4 „I
3,000——X„ 4 „I
15,000——X„ 4 „I
1,400——X„ 4 „I
9,000xl tube—X„ 4 „I
1,700——X„ 4 „I
1,700——X„ 4 „I
700——X„ 4 „I
200——X„ 4 „I
100——X„ 4 „I
200xl tube—X„ 4 „I
300——X„ 4 „I
100——X„ 4 „I
3,600——X„ 4 „I
2,200——X„ 4 „I
2,800——X„ 4 „I
1,000——X„ 4 „I
800——X„ 4 „I
2,200——X„ 4 „I
4,400-—X„ 4 „I
400-—X„ 4 „I
500-—X„ 4 „I
1.800-—X„ 4 „I
1,200-—X„ 4 „I
4,800-—X„ 4 „I
4,000-—X„ 4 ,,I
2,800-—X„ 4 „I
2,700xl tube—X„ 4 „I
800xl tube—X„ 4 „I
8,000xl tube—XIn 4 „II
3,600xl tube—X„ 4 „II
3,200xl tube—X„ 4 „II
13,000xl tube—X„ 4 „II
250xl tube—X„ 4 „II
8,800xl tube—X„ 4 „II
18,000——X„ 4 „II
7,000xl tube—X„ 3½ „II