London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
London County Council 1899
[Report of the Medical Officer of Health for London County Council]
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Addendum B, showing the number of bacteria causing liquefaction of gelatine in 1 cc. of Crossness crude sewage ; and in 1 cc. of effluents from 4-foot, 6-foot (primary), and 6-foot (secondary) Coke beds.
Number of bacteria causing liquefaction of gelatine in 1 cc.-
| Date. | Crossness crude sewage. | Effluent from 4-foot Coke-bed | effluent from 6-foot (primary) Coke-bed | Effluent from 6-foot (secondary) Coke-bed. |
|---|---|---|---|---|
| 1898. | ||||
| August 19th | 600.000 | 400,000 | - | - |
| „ 24th | 600,000 | - | 1,100,000 | - |
| September 14th | 700,000 | 700,000 | - | - |
| „ 21st | 1,200,000 | - | 1,100,000 | - |
| „ 28th | 1,200,000 | 1,200,000 | - | - |
| October 5th | 2,400,000 | - | 600,000 | - |
| „ 12th | 700,000 | 1,200,000 | - | - |
| „ 21st | 1,000,000 | - | 1,000,000 | - |
| „ 26th | 700,000 | - | - | 500,000 |
| November 9th | 1,900,000 | 1,400,000 | - | - |
| „ 16th | 1,600,000 | - | 1, MX), 000 | - |
| „ 23rd | 900,000 | - | - | 400,000 |
| „ 30th | 900,000 | 500,000 | - | - |
| December 7th | 1,400,000 | - | 900,000 | - |
| „ 14th | 1,400,000 | - | - | 1,600,000 |
| „ 21st | 2,200,000 | 600,000 | - | - |