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 Kensington]
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TABLE XV.
QUARTERLY RETURN
Or the Chief Gas Examiner.
Common Gas.
Besults of the Daily Testings of the Gas supplied by the Gas Light and Coke Company to the Testing Station at 123, Ladbroke Grove, Notting Hill, during the months of July, August, and September, 1874.
July. | Illuminating Power in Standard Sperm Candles. | Amount of Impurity. | August. | Illuminating Power in Standard Sperm Candles. | Amount of Impurity. | September. | Illuminating Power in Standard Sperm Candles. | Amount of Impurity. | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sulphuretted Hydrogen. | Ammonia per 100 feet, grains. | Sulphur per 100 feet, grains. | Sulphuretted Hydrogen. | Ammonia per 100 feet, grains. | Sulphur per 100 feet rains. | Sulphuretted Hydrogen. | Ammonia per 100 feet, grains. | Sulphur per 100 feet, grains. | ||||||
1 | 18.6 | None | 08 | 16.4 | 1 | 16.8 | None | 0.3 | 15.7 | 1 | 16.3 | None | ... | ... |
2 | 17.6 | „ | 1.2 | 19.2 | 3 | Not received | 2 | 16.7 | „ | ... | ... | |||
3 | ... | „ | 0.0 | 19.1 | 4 | 17.0 | „ | 0.8 | 17.0 | 3 | 18.7 | „ | ... | ... |
4 | ... | „ | 1.2 | 19.6 | 5 | 16.6 | „ | 0.6 | 17.2 | 4 | 16.6 | „ | ... | ... |
6 | ... | „ | 0.0 | 20.4 | 6 | 16.6 | „ | 0.6 | 17.4 | 5 | 17.1 | „ | None | ... |
7 | 17.6 | „ | 0.8 | 20.1 | 7 | 17.2 | „ | 0.0 | 17.1 | 7 | 17.3 | „ | „ | 16.5 |
8 | 17.6 | „ | 0.8 | 20 2 | 8 | 16.9 | „ | 0.6 | 169 | 8 | 16.7 | „ | „ | 16.6 |
9 | 17.4 | „ | 1.0 | 20.2 | 10 | 16 9 | „ | 0.4 | 13.5 | 9 | 16.6 | „ | „ | 16.5 |
10 | 17.4 | 1.0 | 20 3 | 11 | 16.9 | „ | 0.4 | 18.1 | 10 | 16.2 | „ | „ | 21.8 | |
11 | 17.3 | „ | 0.0 | 19.3 | 12 | 16.5 | „ | 0.0 | 18.5 | 11 | 17.0 | „ | 0.6 | 18.6 |
13 | 17.5 | „ | 1.8 | 19.6 | 13 | 16.8 | „ | 0.4 | 18.4 | 12 | 16.6 | „ | 0.3 | 15.3 |
14 | 17.3 | „ | 1.0 | 21.3 | 14 | 16.9 | „ | 1.0 | 13.6 | 14 | 16.5 | „ | 0.4 | 18.1 |
15 | 17.5 | „ | 0.0 | 20.5 | 15 | 16.7 | „ | 0.4 | 8.4 | 15 | 17.1 | „ | 0.0 | 16.9 |
16 | 16.6 | „ | 0.0 | 19.5 | 17 | 16.5 | „ | 0.6 | 13.6 | 16 | 17.0 | „ | 1.2 | 16.8 |
17 | 16.6 | „ | 1.0 | 19.4 | 13 | 16.1 | „ | 0.3 | 13.1 | 17 | Not received | |||
18 | 16.7 | „ | 0.6 | 19.4 | 19 | 16.4 | „ | 0.4 | 17.6 | 18 | 16.7 | „ | none | 17.1 |
20 | 16.9 | „ | 0.2 | 19.4 | 20 | 16.3 | „ | 05 | 17.5 | 19 | 16.3 | „ | „ | 17.1 |
21 | 16.8 | „ | 0.0 | 16.0 | 21 | Not received | 21 | 16.7 | „ | „ | 17.1 | |||
22 | 17.0 | „ | 0.0 | 144 | 22 | 16.5 | „ | 0.5 | 17.4 | 22 | 16 3 | „ | „ | 17.4 |
23 | 17.2 | „ | 0.0 | 16.0 | 24 | 16.9 | „ | 0.6 | 19.8 | 23 | 16.6 | ... | „ | 17.4 |
24 | Not received | 25 | 16.5 | „ | o.o | 19.7 | 24 | 16.3 | ... | „ | 17.1 | |||
25 | 16.8 | „ | 0.0 | 16.5 | 26 | 16.5 | „ | 0.0 | 13.1 | 25 | 16.9 | ... | „ | 17.0 |
27 | 16.7 | „ | 0.0 | 16.0 | 27 | 16.9 | „ | 0.0 | 17.7 | 26 | 17.1 | „ | 0.5 | 17.1 |
28 | 16.7 | 0.0 | 16.3 | 28 | Not received | 28 | 17.5 | „ | 0.0 | 16.9 | ||||
29 | 16.5 | „ | 0.4 | 16.2 | 29 | 16.4 | „ | 0.0 | ... | 29 | 16.6 | „ | 0.6 | 14.3 |
30 | 16.6 | „ | 0.6 | 26.4 | 31 | 17.3 | „ | 0.0 | ... | 30 | 17.4 | „ | 0.6 | 17.9 |
31 | 17.1 | „ | 0.6 | 16.5 | ||||||||||
Mean | 17.13 | „ | 0.50 | 18 76 | Mean | 16.70 | „ | 0.37 | 17.93 | Mean | 16.83 | „ | 0.15 | 17.17 |