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
Walthamstow 1934
[Report of the Medical Officer of Health for Walthamstow]
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39
In addition, 9 samples of cream were analysed and the results
are given below:—
BACTERIOLOGICAL ANALYSIS OF CREAM SAMPLES.
| Date. | Total Bacteria per c.c. | Bacillus Coli absent in | Remarks. |
|---|---|---|---|
| 25.10.34 | 13,000,000 | 0.0001 c.c. | Not of standard of bacterial purity to be expected of a clean pasteurised cream. |
| „ | 1,000,000 | 0.00001 c.c. | Not of standard of bacterial purity to be expected of a clean pasteurised cream. |
| „ | 5,100 | 1.0 c.c. | High standard of bacterial purity. |
| „ | 40,200 | 1.0 c.c. | „„ „ |
| 31.10.34 | 210,000 | 0.01 c.c. | Purity satisfactory. |
| „ | 400 | 1.0 c.c. | High standard of bacterial purity. |
| „ | 3,700 | 1.0 c.c. | „ „ „ |
| 1.12.34 | 4,850 | 1.0 c.c. | „ „ „ |
| „ | 6,500 | 1.0 c.c. | „ „ „ |
Nineteen samples of Ice Cream were taken for analysis, the
results being given below:—
BACTERIOLOGICAL ANALYSIS OF ICE CREAM SAMPLES.
| Date. | Total Bacteria per c.c. | Bacillus Coli absent in | Remarks. |
|---|---|---|---|
| 14.6.34 | 180,000 | 0.01 c.c. | Satisfactory, but not of high standard. |
| „ | 61,000 | 1.0 c.c. | Satisfactory bacterial purity. |
| „ | 130,000 | 0.1 c.c. | Satisfactory, but not of high standard. |
| „ | 64,000 | 1.0 c.c. | Satisfactory bacterial purity. |
| „ | 15,400 | 0.1 c.c. | „ „ „ |
| „ | 13,400 | 0.1 c.c. | „ „ „ |
| 21.8.34 | 8,300 | 0.1 c.c. | „ „ „ |
| „ | 15,000 | 1.0 c.c. | „ „ „ |
| „ | 210,000 | 1.0 c.c. | Not dirty, but not of standard of bacterial purity which can be obtained. |
| „ | 460,000 | 0.001 c.c. | Low grade of bacterial purity. |
| „ | 38,000 | 1.0 c.c. | Satisfactory bacterial purity. |
| „ | 18,000 | 1.0 c.c. | „ „ „ |
| 6.9.34 | 4,200 | 1.0 c.c. | High standard of bacterial purity. |
| 20.9.34 | 24,000 | 1.0 c.c. | „ „ „ |
| „ | 24,000 | 0.01 c.c. | Satisfactory bacterial purity. |
| „ | 180,000 | 0.01 c.c. | Count high, but as B. Coli number small considered satisfactory. |
| „ | 180,000 | 0.01 c. c. | Count high, but as B. Coli number small considered satisfactory. |
| „ | 11,000 | 0.01 c. c. | Satisfactory bacterial purity. |
| „ | 3,800 | 1.0 c.c. | High standard of bacterial purity. |