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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PLATE III.
Fig. 9. B. Thermophilus (or allied form).—Microscopic preparation from a broth
culture. Isolated from Barking crude sewage. In illustration of one of the thermophilic
bacteria—these microbes are abundant in the raw sewage and in the effluents from the
coke-beds, and grow luxuriantly at a temperature of 60-70° C. X 1,000.
Fig. 10. Same as fig. 9. X 500.