Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Merton & Morden]
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57 samples were obtained and submitted for examination with the following results:–
| No. | Grade | Methylene Blue Test | Coliform B. | Remarks |
|---|---|---|---|---|
| 1 | 1 | Satisfactory | Absent | |
| 2 | 1 | „ | Present | |
| 3 | 2 | „ | „ | |
| 4 | 1 | „ | „ | |
| 5 | 1 | „ | „ | |
| 6 | 3 | Unsatisfactory | „ | |
| 7 | 2 | Satisfactory | Absent | |
| 8 | 2 | „ | „ | |
| 9 | 1 | „ | Present | |
| 10 | 1 | „ | „ | |
| 11 | 2 | „ | „ | |
| 12 | 1 | „ | „ | |
| 13 | 2 | „ | „ | |
| 14 | 3 | Unsatisfactory | „ | |
| 15 | 1 | Satisfactory | Absent | |
| 16 | 2 | „ | „ | |
| 17 | 2 | „ | „ | |
| 18 | 3 | Unsatisfactory | „ | |
| 19 | 2 | Satisfactory | Present | |
| 20 | 1 | „ | Absent | |
| 21 | 3 | Unsatisfactory | Present | |
| 22 | 1 | Satisfactory | Absent | |
| 23 | 2 | „ | Present | |
| 24 | 1 | „ | Absent | |
| 25 | 1 | „ | „ | |
| 26 | 3 | Unsatisfactory | present | |
| 27 | 3 | „ | „ | |
| 28 | 3 | „ | Absent | |
| 29 | 1 | Satisfactory | Present | |
| 30 | 4 | Unsatisfactory | „ | Faecal coli present |
| 31 | 4 | „ | „ | Faecal coli present |
| 32 | 3 | „ | „ | |
| 33 | 2 | Satisfactory | „ | |
| 34 | 3 | Unsatisfactory | „ | |
| 35 | 3 | „ | „ | |
| 36 | 3 | „ | „ | |
| 37 | 3 | „ | „ | |
| 38 | 2 | Satisfactory | „ | |
| 39 | 3 | Unsatisfactory | „ | |
| 40 | 3 | „ | „ | |
| 41 | 3 | „ | „ | |
| 42 | 3 | „ | „ | Faecal coli present |
| 43 | 3 | „ | „ | |
| 44 | 2 | Satisfactory | „ | |
| 45 | 2 | „ | Present | |
| 46 | 2 | „ | „ | |
| 47 | 2 | „ | „ | |
| 48 | 2 | „ | „ | |
| 49 | 1 | „ | „ | |
| 50 | 4 | Unsatisfactory | „ | |
| 51 | 1 | Satisfactory | „ | |
| 52 | 2 | „ | „ | |
| 53 | 4 | Unsatisfactory | „ | |
| 54 | 1 | Satisfactory | Absent | |
| 55 | 4 | Unsatisfactory | Present | |
| 56 | 1 | Satisfactory | Absent | |
| 57 | 3 | Unsatisfactory | „ |