London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
City of London 1933
[Report of the Medical Officer of Health for Port of London]
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Rats Destroyed during 1933.
TABLE E.
(1) On Vessels.
| Number of | Jan. | Feb. | Mar. | April. | May. | June. | July. | Aug. | Sept. | Oct. | Nov. | Dec. | Total in Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Black Rats | 90 | 77 | 50 | 20 | 63 | 41 | 31 | 19 | 61 | 67 | 41 | 67 | 627 |
| Brown Rats | — | 2 | 1 | 3 | 2 | — | 6 | — | — | — | 7 | 2 | 23 |
| Species not Recorded | 420 | 152 | 99 | 228 | 205 | 498 | 514 | 152 | 124 | 448 | 76 | 341 | 3,257 |
| Rats examined | 90 | 79 | 51 | 23 | 65 | 41 | 37 | 19 | 61 | 67 | 48 | 69 | 650 |
| Rats infected with Plague | nil | nil | nil | nil | nil | nil | nil | nil | nil | nil | nil | nil | nil |
See also Appendices XXVI. and XXVII.
TABLE F.
(2) In Docks, Quays, Wharves and Warehouses.
| Number of | Jan. | Feb. | Mar. | April. | May. | June. | July. | Aug. | Sept. | Oct. | Nov. | Dec. | Total inYear. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Black Rats | 29 | 21 | 27 | 12 | 28 | 7 | 12 | 20 | 38 | 79 | 52 | 45 | 370 |
| Brown Rats | 94 | 81 | 93 | 57 | 114 | 53 | 52 | 39 | 69 | 110 | 137 | 108 | 1,007 |
| Species not Recorded | 229 | 216 | 154 | 349 | 285 | 295 | 380 | 244 | 335 | 371 | 319 | 357 | 3,534 |
| Rats examined | 123 | 102 | 120 | 69 | 142 | 60 | 64 | 59 | 107 | 189 | 189 | 153 | 1,377 |
| Rats infected with Plague | nil | nil | nil | nil | nil | nil | nil | nil | nil | nil | nil | nil | nil |
RATS EXAMINED—Vessels, Docks, Quays, &c. 2,027
See also Appendices XXVI. and XXVII.
TABLE G.
Measures of Rat Destruction on Plague "Infected" or "Suspected" Vessels or Vessels from Plague Infected Ports arriving in the Port during the Year.
| Total Number of such Vessels arriving. | Number of such Vessels fumigated by S02. | Number of Rats Killed. | Number of such Vessels fumigated by HCN. | Number of Rats Killed. | Number of such Vessels on which Trapping, Poisoning, &c., were employed. | Number of Rats Killed. | Number of such Vessels on which measures of Rat Destruction were not carried out. |
|---|---|---|---|---|---|---|---|
| 1. | 2. | 3. | 4. | 5. | 6. | 7. | 8. |
| 2,408 | 58 | 713 | 59 | 1,181 | 1,390 | 1,553 | 1,018 |
| (231 mice.) | (62 mice.) |
TABLE H.
Deratisation Certificates and Deratisation Exemption Certificates issued during the Year.
| NET TONNAGE. | Number of Ships. | Number of Deratisation Certificates Issued. | Number of Deratisation Exemption Certificates issued. | Total Certificates issued. | ||||
|---|---|---|---|---|---|---|---|---|
| After Fumigation with. | After Trapping, Poisoning, &c. | Total. | ||||||
| HCN. | Sulphur. | HCN. and Sulphur. | ||||||
| 1. | 2. | 3. | 4. | 5. | 6. | 7. | 8. | 9. |
| Ships up to 300 tons | 175 | — | — | — | — | Nil. | 175 | 175 |
| „ from 301 „ to 1,000 tons | 265 | — | l | — | — | 1 | 264 | 265 |
| „ „ 1,001 „ „ 3,000 „ | 188 | 7 | 16 | — | l | 24 | 164 | 188 |
| „ „ 3,001 „ „ 10,000 „ | 358 | 47 | 51 | — | — | 98 | 260 | 358 |
| „ over 10,000 „ | 41 | 13 | — | — | — | 13 | 28 | 41 |
| Totals | 1,027 | 67 | 68 | — | l | 136 | 891 | 1,027 |