London's Pulse: Medical Officer of Health reports 1848-1972
View report page
Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Lewisham 1956
[Report of the Medical Officer of Health for Lewisham Borough]
This page requires JavaScript
27
The undermentioned table gives a summary of the work on the
rivers and ditches :—
Table 15
| Location | Base points | Days on which prebait laid | Poison bait taken(ozs.)(Est.) |
|---|---|---|---|
| River Ravensbourne | 468 | 3/4 | 197 |
| River Quaggy | 215 | 3/4 | 77 |
| River Pool | 85 | 3/4 | 34½ |
| Ditches | - | - | - |
Special liaison is made twice yearly with the Borough Engineer's
department for the treatment of sewers. In 1956 treatments were
carried out in June and December. The method employed in carrying
out this work was to deposit 8 ozs. prebait on the first day and if a
complete take was shown, 16 ozs. of prebait were used on the second
day. Where complete takes were shown on the second day, the poison
bait deposited was equal to the prebait. In any case at least 8 ozs. of
poison bait was deposited. Poison takes were not inspected.
The following is a summary of the results obtained: —
Summer treatment
Manholes baited 2,900
Manholes showing prebait take 650
Manholes showing complete prebait take
(on one or both days) 662
Winter treatment
Manholes baited 2,929
Manholes showing prebait take 491
Manholes showing complete prebait take 545