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 Surbiton]
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In December the 13th maintenance treatment of the Corporation's sewer system was carried out as follows:—
Area | No. of manholes pr e-baited | No.of manholes showing takes of pre-bait and subsequently poison baited. | No. of manholes showing takes of poison bait. |
---|---|---|---|
1 | 6 | 4 | 3 |
2 | 14 | 13 | 11 |
3 | 1 | 1 | 1 |
4 | 15 | 13 | 11 |
5 | 8 | 8 | 2 |
6 | 9 | 5 | 3 |
8 | 8 | 8 | 7 |
61 | 52 | 38 |