London's Pulse: Medical Officer of Health reports 1848-1972
View report page
Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Islington 1895
[Report of the Medical Officer of Health for Islington, Parish of St. Mary ]
This page requires JavaScript
TABLE XIII.—Illuminating Power and Quality of the Gas Supplied to
Islington.
| Week ending. | Illuminating Power (In Standard Sperm Candles). | Sulphur (Grains in 100 cub. ft. of Gas). | Ammcnia (Grains in 100 cub. ft. of Gas). | Sulphuretted Hydrogen. | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1895. | Max. | Min. | Mean. | Max. | Min. | Mean. | Max. | Min. | Mean. | |
| 6 th July | 17.0 | 16.4 | 16.7 | 12.5 | 10.5 | 11.2 | 0.4 | 02 | 0.2 | None |
| 13th ,, | 17.1 | 16.3 | 16.8 | 113 | 96 | 10.6 | 0.4 | 0.2 | 0.2 | „ |
| 20th „ | 17.1 | 16.5 | 16.8 | 10.2 | 9.3 | 9.6 | 0.4 | 0.1 | 0.3 | „ |
| 27th „ | 16.8 | 16.8 | 16.8 | 12.1 | 10.3 | 11.2 | 0.8 | 0.8 | 0'8 | „ |
| Average for July | 17.0 | 16.5 | 16.7 | 11.6 | 9.9 | 10.6 | 0.5 | 0.3 | 0.3 | „ |
| 3rd August | 16.2 | 15.8 | 16.0 | 13.1 | 9.3 | 11.2 | 0.8 | 0.1 | 0.5 | None |
| 10th „ | 16.8 | 16.0 | 16.3 | 13.0 | 11.4 | 12.1 | 0.3 | 0.0 | 0.2 | „ |
| 17th „ | 16.5 | 15.2 | 16.4 | 13.7 | 10.8 | 11.9 | 0.4 | 0.2 | 0.3 | „ |
| 24th „ | 16.6 | 16.0 | 16.3 | 13.8 | 10.3 | 12.3 | 0.6 | 0.3 | 0.4 | „ |
| Average for August | 16.5 | 16.0 | 16.2 | 13.4 | 10.4 | 11.8 | 0.5 | 0.1 | 0.3 | „ |
| 31st August | 17.0 | 16.2 | 16.6 | 14.2 | 9.6 | 12.3 | 0.5 | 0.0 | 0.3 | None |
| 7th Sept. | 17.3 | 16.4 | 17.0 | 13.1 | 9.1 | 12.1 | 0.3 | 0.0 | 0.1 | „ |
| 14th „ | 17.3 | 16.3 | 16.7 | 14.3 | 11.3 | 12.7 | 0.1 | 0.0 | 0.1 | „ |
| 21st ,, | 17.4 | 16.0 | 16.8 | 14.4 | 10.8 | 12.3 | 0.3 | 0.0 | 0.1 | „ |
| 28th „ | 17.4 | 16.4 | 16.8 | 16.3 | 11.1 | 12.5 | 0.4 | 0.0 | 0.2 | „ |
| Average for Sept. | 17.2 | 16.14 | 16.7 | 14.4 | 10.3 | 12.3 | 0.3 | 0.0 | 0.1 | „ |
| Average for Quarter | 16.9 | 16.2 | 16.5 | 13.1 | 10.2 | 11.5 | 0.4 | 0.1 | 0.2 | „ |
Note.—The standard illuminating power of the Gas supplied by the Gas Company is
lb sperm candles. Sulphur not to exceed 22 grains in the 100 cubic feet of Gas on an
average of three days. Ammonia not to exceed 4 grains in the 100 cubic feet of Gas on
an average of three days.
The Standard Burner used in testing is known as " Sugg's London Argand, No. 1."
Pressure between Sunset and Midnight to be equal to a column of one inch of water.
,, between Midnight and Sunrise to be equal to a column of six.tenths of an
inch of water.