Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Islington, Metropolitan Borough of]
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Chart showing the Mean Weekly number of Deaths from PNEUMONIA during each week of the eighteen years
1896-1913, and in 1914.
Eighteen years average = Heavy black line. Deaths 1914 = Dotted line.