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 London County Council]
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Figure 1
POPULATION AGE DIAGRAMLONDON
A.C. CENSUS 1951 AND 1961
The size (area) of the block for each age group represents the proportion of the total population in that group
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