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
Wanstead and Woodford 1946
[Report of the Medical Officer of Health for Wanstead and Woodford]
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The following table gives the result of the examinations carried out by the Counties Public HealthLaboratories.
| Number | Hot or cold mix | Local or outside manufacture | No. of colonies per ml. on Agar at 37deg. C. | Coliform test. Positive in 1/100 ml. in 3 tubes | Bact. coli. Present in 1/100 ml. in 3 tubes | REMARKS |
|---|---|---|---|---|---|---|
| 1 | Cold | Local | 700 | 0 in 3 tubes | 0 in 3 tubes | High standard of bacterial purity |
| 2 | Hot | Local | 48,000 | 3 in 3 tubes | 0 in 3 tubes | Satisfactory standard of bacterial purity |
| 3 | Hot | Local | 120,000 | 3 in 3 tubes | 0 in 3 tubes | Passable standard of bacterial purity but not of quality expected of a “boiled mix.” |
| 4 | Hot | Local | 36,000 | 3 in 3 tubes | 0 in 3 tubes | Satisfactory standard of bacterial purity |
| 5 | - | Outside | 4,100 | 0 in 3 tubes | 0 in 3 tubes | High standard of bacterial purity |
| 6 | Outside | 340,000 | 3 in 3 tubes | 0 in 3 tubes | Unsatisfactory and contains excessive numbers of bacteria | |
| 7 | Outside | 1,000 | 0 in 3 tubes | 0 in 3 tubes | High standard of bacterial purity | |
| 8 | Outside | 70,000 | 3 in 3 tubes | 0 in 3 tubes | Satisfactory standard of bacterial purity | |
| 9 | Hot | Outside | ½ million | 3 in 3 tubes | 0 in 3 tubes | Contains excessive numbers of bacteria, including bact. coli. in 1/100 ml. indicative of faecal contamination |
| 10 | Hot | Outside 70,000 | 0 in 3 tubes | 0 in 3 tubes | Satisfactory standard of bacterial purity | |
| 11 | - | |||||