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 Lambeth]
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The Gas supplied by the Gas Light and Coke Company and by the Crystal Palace District Gas Company has been regularly tested by the Medical Officer, and the following
| Gas Companies. | Parliamentary Standard. Candles. | Where tested. | Average Illuminating Power. Candles. | Tests for purity, Ammonia, and Sulphuretted Hydrogen. |
|---|---|---|---|---|
| Gas Light and Coke | 16 | Vestry Hall | 15.9 | Free from Sulphuretted Hydrogen &Ammonia. |
| Crystal Palace District | 12 | Sydenham Station | 16.1 | Ditto. |
The following gives the Illuminating Power of the Gas supplied by the South Metropolitan Company, as tested at the Peckham and Clapham Testing Stations during the year ending 30th March, 1887.
| Quarter ending | ILLUMINATINGpower. | ||
|---|---|---|---|
| Maximum. | .Minimum. | Average. | |
| June Quarter, 1886 | 17.1 | 16.2 | 16.6 |
| Sept. „ „ | 17.1 | i6.2 | 16.6 |
| Dec. „ „ | 17.0 | 16.2 | 16.6 |
| March „ 1887 | 17.0 | 16.1 | 16.6 |