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 7, showing, as regards the effluents from the 4-foot and 6-foot coke-beds, the percentage deviation from the mean in eight samples and two
samples respectively, examined bacteriologically for the total number of bacteria, the number of spores of bacteria, and the number of liquefying bacteria.