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 St. Marylebone, Metropolitan Borough]
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TABLE 7.—Nuisances Remedied.
| Nuisance Abated or Defect Remedied | Number |
|---|---|
| Houses damp, dirty or dilapidated | 146 |
| Doors, windows, floors, ceilings, sash cords, grates and flues, etc., defective | 195 |
| Drain, water-closet and waste pipe stoppages | 61 |
| Drains, water-closets and waste pipes defective | 61 |
| Yard, area and wash-house defects | 15 |
| Roofs, gutters and rainwater pipes defective | 125 |
| Insufficient water supplies | 10 |
| Water cisterns dirty or defective | 10 |
| Ashpits, dustbins, etc., defective | 40 |
| Rubbish accumulations | 35 |
| Animal nuisances | 5 |
| Miscellaneous | 27 |
| Total | 730 |
TABLE 8.— Chemical Examination of Water supplied to St. Marylebone—Average Results.
| Source of Supply:— | Hampton | Ashford Common | Barn Elms |
|---|---|---|---|
| No. of samples | 52 | 52 | 52 |
| Ammonia Nitrogen | 0.045 | 0.055 | 0.034 |
| Albuminoid Nitrogen | 0.080 | 0.084 | 0.082 |
| Nitrate | 4.1 | 3.9 | 3.9 |
| Chlorides as CI. | 26 | 26 | 26 |
| Oxygen abs. from Permanganate 4 hrs. at 27º C. | 1.06 | 1.14 | 1.14 |
| Turbidity units | 0.2 | 0.2 | 0.4 |
| Colour m.m. brown 2 ft. Tube Rurgess's Tintometer | 13 | 13 | 13 |
| Hardness (total) | 268 | 278 | 276 |
| Hardness (non-carbonate) | 52 | 52 | 52 |
| pH. Value | 7.9 | 8.0 | 8.0 |
| Phosphate as P04 | 0.95 | 0.95 | 0.90 |
| Silicate as Si02 | 9 | 9 | 9 |
| Sulphate as S04 | 50 | 50 | 50 |
| Natural Fluoride as F | 0.2 | 0.2 | 0.2 |
| Magnesium as Mg. | 6 | 6 | 6 |
| Surface active material as manoxol | 0.11 | 0.11 | 0.11 |
| Electrical Conductivity (micromhos) | 525 | 550 | 550 |
TABLE 9.—Bacteriological Examination of Water supplied to St. Marylebone—Average Results after Treatment.
| Source of supply | Number of samples | Agar plate count per ml. | Coliform count | E. coli count | |
|---|---|---|---|---|---|
| 20-24 hours at 37°C. | 3 days at 22°C. | Per cent, samples negative in 100 ml. | Per cent, samples negative in 100 ml. | ||
| Hampton | 1,066 | 11.7 | _ | 99.91 | 100.0 |
| Ashford Common | 765 | 24.1 | — | 99.87 | 100.0 |
| Barn Elms | 510 | 19.7 | — | 100.0 | 100.0 |