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 Enfield]
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CERTIFICATION OF BLINDNESS AND PARTIAL SIGHT
Follow-up of Registered Blind and Partially Sighted Persons in 1966
Cause of Disability | |||||
---|---|---|---|---|---|
Cataract | Glaucoma | Retrolental Fibroplasia | Myopia | Others | |
(i) Number of cases registered during the year in respect of which Forms B.D.8 recommended: | |||||
(a) No treatment | 3 | 2 | — | 1 | 23 |
(b) Treatment (medical, surgical, optical, or ophthalmic medical supervision) | 11 | 18 | - | 7 | 30 |
(ii) Number of cases at (i)(b) above which on follow-up action: | |||||
(a) Have completed treatment | — | — | — | — | 1 |
(b) Treatment started, but not completed | 2 | 16 | 5 | 25 | |
(c) Awaiting treatment | 5 | 1 | — | 2 | 3 |
(d) Refused treatment | 3 | — | — | — | — |
(e) Died or removed from the Borough | 1 | 1 | - | - | 1 |
(iii) Number of new cases registered as at 31st December, 1966 | 14 | 20 | — | 8 | 53 |
(iv) Total number of cases registered as at 31st December, 1966 | 664 |
TABLE 30
WATER SUPPLY
Metropolitan Water Board
Chemical and Mineral Analysis
Average results in milligrams per litre where applicable | |||||
---|---|---|---|---|---|
* Thames derived North of River | New River derived | Hoe Lane Well derived | Hadley Road Well derived | Waltham Abbey Well derived | |
Number of samples | 207 | 104 | 3 | 5 | 4 |
Albuminoid Nitrogen | 0087 | 0071 | 0036 | 0-050 | 0046 |
Ammoniacal Nitrogen | 0031 | 0027 | 0160 | 0150 | 0-221 |
Nitrate Nitrogen | 39 | 5-5 | 02 | 01 | 01 |
Oxygen abs. from KMn04, | 1 26 | 076 | 0-44 | 032 | 0-38 |
4 hrs. at 27°C | |||||
Hardness (total) CaCO3 | 289 | 315 | 419 | 285 | 294 |
Hardness (non-carbonate) CaCO3 | 78 | 83 | 159 | 46 | 69 |
Magnesium as Mg | 5 | 4 | 23 | 27 | 21 |
Chloride as CI | 32 | 36 | 30 | 23 | 25 |
Phosphate as P04 | 1.6 | 1.5 | — | — | — |
Silicate as SiO2 | 7 | 10 | 17 | 25 | 19 |
Sulphate as SO4 | 68 | 64 | 159 | 84 | 85 |
Natural Fluoride as F | 0.20 | 0.20 | — | — | — |
Surface-active material as Manoxol OT | 0.01 | 0.01 | - | - | - |
Turbidity Units | 0.1 | 0.1 | 1.5 | 0.9 | 0.8 |
Colour (Burgess units) | 15 | 9 | 12 | 5 | 7 |
pH Value | 7.9 | 7.7 | 7.0 | 7.4 | 7.4 |
Electrical Conductivity (micromhos) | 570 | 630 | 760 | 580 | 570 |
* Ashford Common, Kempton Park, Hanworth Road and Barn Elms |