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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Diagram G.—Seasonal prevalence of fleas, 1909-12 183
„ H.—Prevalence and degree of myopia at various age periods 201
„ J.—Age incidence of errors of refraction 205
Special Reports.
London Life Table, 1901-1910—
(a) Population at risk and deaths, 110.
(b) Values of px, ls, and mx, 112.
(c) Values of Ex and m, 113.
Map.
F.—Area served by cleansing stations 181