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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DIAGRAM 9.
Showing the total number of Bacteria (Gelatine at 20° C. Agar at 37° C) in Crossness
crude sewage, and in the effluent from the 13 ft. coke-bed.