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
Coulsdon and Purley 1938
[Report of the Medical Officer of Health for Coulsdon]
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The following is a summary of the results of the 66 samples examined
bacteriologically:—
TOTAL COUNT.
Under 30,000 bacteria per c.c. 38
30,000—200,000 21
200,000—400,000 3
Over 400,000 4
COLIFORM BACILLUS.
Absent in 1 c.c. —
do. 0.1 c.c. 35
do. 0.01 c.c. 18
do. 0.001 c.c. 5
do. 0.0001 c.c. 8
No samples of graded milk were taken under the special instructions
of the Ministry of Health. Three samples of Pasteurised milk were
taken, all of which were satisfactory.
During the year the Council granted the following licences to sell
milk under the Milk (Special Designations) Order, 1936:—
Ordinary. Supplementary.
Tuberculin Tested 9 6
Accredited 2 -
Pasteurised 10 4
ICE CREAM.
The following Table shows the results of the ice cream samples examined during the year, and the effect of instruction and persuasion in dealing with the producers:—
| Sample. | No. of Bacteria in 1 c.c. on agar at 37° C. in 48 hours. | Coliform Bacilli. | |
|---|---|---|---|
| Present in | Absent from | ||
| 1. | 38,400 | - | 0.1 c.c. |
| 2. | 112,000 | 0.001 c.c. | — |
| 3. | 89,600 | — | 0.1 c.c. |
| 4. | 1,560,000 | 0.001 c.c. | — |
| 5. | 6,000 | 0.01 c.c. | 0.001 c.c. |
| 6. | 390 | — | 0.1 c.c. |
| 7. | 284,000 (repeat of No. 2) | — | 0.1 c.c. |
| 8. | 340 | — | 0.1 c.c. |
| 9. | 540 (repeat of No. 5) | — | 0.1 c.c. |
| 10. | 2,100 | — | 0.1 c.c. |
| 11. | 3,900 | 0.001 c.c. | — |
| 12. | 14,600 | 0.1 c.c. | 0.01 c.c. |
| 13. | 252,000 | — | 0.1 c.c. |
| 14. | 5,968,000 | — | 0.1 c.c. |
| 15. | 1,056,000 (repeat of No. 13) | 0.01 c.c. | 0.001 c.c. |
| 16. | 1,320 (repeat of No. 14) | — | 0.1 c.c. |
| 17. | 400 (repeat of No. 7) | — | 0.1 c.c. |
| 18. | 81,000 | 0.1 c.c. | 0.01 c.c. |
| 19. | 568,000 | 0.001 c.c. | — |
| 20. | 516,000 (repeat of No. 19) | 0.001 c.c. | — |
| 21. | 700 (repeat of No. 12) | 0.1 c.c. | 0.01 c.c. |
| 22. | 190,000 | 0.1 c.c. | 0.01 c.c. |
| 23. | 224,000 (repeat of No. 20) | 0.001 c.c. | — |
| 24. | 308,000 (repeat of No. 22) | 0.01 c.c. | 0.001 c.c. |
| 25. | 120 (repeat of No. 24) | 0.1 c.c. | 0.01 c.c. |
| 26. | 256,000 (repeat of No. 23) | 0.01 c.c. | 0.001 c.c. |
| 27. | 190 | 0.1 c.c. | 0.01 c.c. |