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
Holborn 1935
[Report of the Medical Officer of Health for Holborn Borough]
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| Percentage of Fat | Number of Samples. | ||||
|---|---|---|---|---|---|
| Shops. | Restaurants | Streets. | School. | Total | |
| Less than 3.0 | 3 | ... | 1 | 1 | 6 |
| 3.0 | 3 | ... | ... | ... | 3 |
| 3.1 | 7 | ... | 1 | 1 | 9 |
| 3.2 | 13 | ... | 5 | 2 | 20 |
| 3.3 | 17 | 2 | 10 | 2 | 31 |
| 3.4 | 26 | 3 | 11 | 1 | 41 |
| 3.5 | 21 | 2 | 6 | ... | 29 |
| 3.6 | 18 | 2 | 4 | ... | 24 |
| 8.7 | 15 | ... | 3 | ... | 18 |
| 3.8 | 9 | ... | 3 | 1 | 13 |
| 3.9 | 5 | ... | ... | ... | 5 |
| 4.0 | 2 | ... | ... | ... | 2 |
| 4.1 | 8 | ... | ... | ... | 8 |
| 4.2 | 1 | ... | ... | ... | 1 |
| 4.3 | 2 | ... | ... | ... | 2 |
| 4 .8 | 1 | ... | ... | ... | 1 |
| 4.9 | 1 | ... | ... | ... | 1 |
| 5.4 | ... | 1 | ... | ... | 1 |
| 5.6 | 2 | ... | ... | ... | 2 |
| 5.7 | 1 | ... | ... | 1 | |
| 7.4 | 1 | ... | ... | ... | 1 |
| Total Samples | 156 | 10 | 44 | 8 | 218 |
| Average fat content | 3.60% | 3.64% | 3.40% | 3.23% | 3.55% |
No. 2. Monthly Variation of Chemical Composition of Milk.
| Month. | Number of Samples examined. | Total Solids. Per cent, average. | Solids Non-fat. Per cent, average. | Fat. Per cent, average. |
|---|---|---|---|---|
| January | 23 | 12.32 | 8.90 | 3.42 |
| February | 20 | 12.19 | 8.78 | 3.41 |
| March | 22 | 12.30 | 8.86 | 3.44 |
| April | 20 | 12.10 | 8.82 | 3.28 |
| May | 18 | 12.54 | 8.96 | 3.58 |
| June | 18 | 12.39 | 9.01 | 3.38 |
| July | 13 | 12.46 | 8.98 | 3.48 |
| August | 20 | 12.60 | 8.93 | 3.67 |
| September | 18 | 12.72 | 8.97 | 3.75 |
| October | 20 | 12.73 | 8.90 | 3.83 |
| November | 16 | 12.87 | 9.11 | 3.76 |
| December | 10 | 12.74 | 9.06 | 3.68 |
| Whole year | 218 | 12.48 | 8.93 | 3.55 |
| Legal minimum | ... | 11.50 | 8.50 | 3.00 |