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 XVI.
QUARTERLY RETURN
Or the Chief Gas Examinee.
Common Gas.
Results of the Daily Testings of the Gas supplied by the Gas Light ana Coke Company to the Testing Station at 123, Ladbroke Grove, Notting Hill, during the months of October, November, and December, 1874.
october. | Illuminating Power in Standard Sperm Candles. | Amount of Impurity. | November. | Illuminating Power in Standard Sperm Candles. | Amount of Impurity. | December. | Illuminating Power in Standard Sperm Candles. | Amount of Impurity. | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sulphuretted Hydrogen. | Ammonia per 100 feet, grains. | Sulphur per 100 feet, grains. | Sulphuretted Hydrogen. | Ammonia rer 100 feet, grains. | Sulphur per 100 feet, grains. | Sulphuretted Hydrogen. | Ammonia per 100 feet. grains. | Sulphur per 100 feet, grains. | ||||||
1 | 17.3 | None | 0.8 | 16.5 | 2 | 16.3 | None | None | 17.6 | 1 | 18.2 | None | None | 15.9 |
2 | 16.7 | „ | 0.2 | 18.1 | 3 | 16.9 | „ | „ | 175 | 2 | 17.1 | „ | " | 16.8 |
3 | 16.6 | „ | 0.3 | 16.2 | 4 | 16.9 | „ | „ | 17.5 | 3 | 17.1 | „ | „ | 16.8 |
5 | 16.4 | „ | 0.2 | 15.3 | 5 | 16.7 | „ | „ | 17.3 | 4 | 16.4 | „ | „ | 10.1 |
6 | 16.6 | „ | 0.1 | 13.2 | 6 | 16.8 | „ | „ | 16.5 | 5 | 17.0 | „ | „ | 16.0 |
7 | 16.4 | „ | 0.2 | 14.1 | 7 | 16.1 | „ | „ | 17 3 | „ | 16.5 | „ | „ | 19.4 |
8 | 16.3 | „ | 0.0 | 17.0 | 9 | 16.7 | „ | „ | 18.1 | 8 | 17.0 | „ | „ | 19.5 |
9 | 16.5 | „ | 1.0 | 16.1 | 10 | 16.8 | „ | „ | 14.5 | 9 | 16.7 | „ | „ | 19.1 |
10 | 16.3 | „ | 0.5 | 15.6 | 11 | 16.7 | „ | 0.4 | 15.0 | 10 | 15.8 | prsnt. | „ | 18.2 |
12 | 16.3 | „ | 0.4 | 16.1 | 12 | Not receiv ed | 11 | 17.4 | do. | 0.4 | 22.0 | |||
13 | 16.1 | „ | 0.2 | 16.2 | 13 | 16.7 | „ | 0.4 | 15.0 | 12 | 17.2 | trace | None | 22.1 |
14 | 16.3 | „ | 0.0 | 17.1 | 14 | 16.6 | „ | None | 16.0 | 14 | 16.6 | None | „ | 24.0 |
15 | 16.7 | „ | 0.0 | 17.2 | 16 | 16.6 | „ | „ | 14.4 | 15 | 17.0 | „ | „ | 22.1 |
16 | 16.6 | „ | 0.0 | 17.3 | 17 | 16.5 | „ | 1.0 | 18.3 | 16 | 10.6 | „ | „ | 15.9 |
17 | Not received | ... | 18 | 17.7 | „ | 0.8 | 19.1 | 17 | 16.5 | „ | ... | 16.2 | ||
19 | 16.6 | „ | 0.0 | 17,5 | 19 | 17.3 | „ | 0.6 | ... | 18 | 16 5 | „ | ... | 16.1 |
20 | 15.5 | „ | 0.0 | 17.4 | 20 | 16.7 | „ | None | 18.8 | 19 | 16.5 | „ | ... | 16.3 |
21 | 16.2 | „ | 0.6 | 15.7 | 21 | 16.2 | „ | „ | 18.8 | 21 | 15.9 | „ | „ | 16.6 |
22 | 16.5 | „ | 0.4 | 15.7 | 23 | 16.1 | „ | 1.0 | 16.7 | 22 | 16.4 | „ | „ | 22.4 |
23 | 16.4 | „ | 0.0 | 16.2 | 24 | 16.4 | „ | None | 16.7 | 23 | 16.5 | „ | „ | ... |
24 | 16.4 | „ | 0.0 | 15.8 | 25 | 16.6 | „ | „ | 16.5 | 24 | 17.2 | „ | „ | 22.2 |
26 | 17.8 | traces | 0.0 | 15 4 | 26 | 16.6 | „ | „ | ... | 25 | ... | ... | ... | |
27 | 17.4 | much | 0.0 | 15.3 | 27 | 16.5 | „ | 0.3 | ... | 26 | ... | ... | ... | ... |
28 | 16.8 | trace | 0.0 | 18.4 | 28 | 16 9 | „ | 0.0 | 16.9 | 28 | 16.6 | „ | „ | 22.3 |
29 | 16.3 | None | 0.0 | 18.2 | 30 | 16.7 | „ | 0.0 | 18.4 | 29 | 16.7 | „ | „ | ... |
30 | 16.4 | „ | 0.0 | 18.2 | „ | 30 | 16.0 | „ | „ | 20.5 | ||||
31 | 16.3 | „ | 0.0 | 17.8 | „ | 31 | 15.8 | „ | „ | 20.7 | ||||
Mean | 16.53 | prsnt. three times. | 0.19 | 16.44 | Mean | 16.67 | „ | 0.19 | 17.02 | Mean | 16.68 | prsnt. three times | „ | 19.01 |