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 Islington, Parish of St Mary]
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TABLE B.
Results of a Special Analysis of the Water supplied by the Metropolitan Water Companies during February, as made and published by the Metropolitan Association of Medical Officers of Health.
Total solid matter per Imperial gallon. | Loss by Ignition. | Oxydisable Organic Matter. | Hardness. | ||
---|---|---|---|---|---|
Before Boiling. | After Boiling. | ||||
Thames Water Companies. | grains. | grains. | grains. | degrees. | degrees. |
Grand Junction | 20.99 | 0.94 | 0.56 | 13.9 | 4.1 |
West Middlesex | 20.56 | 1.09 | 0.60 | 13.6 | 3.8 |
Southwark and Vauxhall | 22.81 | 1.34 | 0.72 | 13.9 | 4.5 |
Chelsea | 20.51 | 1.28 | 0.64 | 13.9 | 4.0 |
Lambeth | 21.15 | 1.00 | 0.66 | 14.0 | 4.5 |
Other Companies. "Kent | 26.38 | 1.45 | 0.19 | 14.0 | 8.5 |
New River | 21.20 | 1.28 | 0.39 | 15.0 | 4.8 |
East London | 22.20 | 1.00 | 0.49 | 15.5 | 5.0 |