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 Stoke Newington, The Metropolitan Borough]
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DEPOSIT GAUGE
Month | Rainfall in Inches | Tons per Square Mile | ||
---|---|---|---|---|
Soluble Matter | Insoluble Matter | Total Solids | ||
LEAD PEROXIDE APPARATUS
Month | Mg. of SOs/day collected by 1,000 sq. cm. of Batch A Pb02 (louvered cover) |
---|---|
6.2 | |
10.1 | |