Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Holborn Borough.
This page requires JavaScript
| Nature of premises where sample obtained | Grade | No. of bacteria per c.c. | Minimal amount showing coliform bacteria | Phospha-tase test | Methylene Blue test | Evidence of Tuberculous Infection | Sample Letter |
|---|---|---|---|---|---|---|---|
| School | Pasteurised | 90,000 | 1 c.c. | Negative | ... | ... | B.l |
| School | Pasteurised | 100,000 | 1 c.c. | Negative | ... | ... | B.2 |
| School | Pas teurised | 100,000 | 1 c.c. | Negative | ... | None | B.3 |
| Milk Bar | Pasteurised (Homogenised) | 100,000 + | 1 c.c. | ... | ... | ... | B.4 |
| Milk Bar | Pasteurised (Homogenised) | 100,000 + | 1 c.c. | Positive | ... | ... | B.5 |
| Milk Bar | Pasteurised (Homogenised) | 100,000 + | 1 c.c. | Negative | ... | ... | B.6 |
| Milk Bar | Pasteurised (Homogenised) | 100,000 + | 1 c.c. | Negative | ... | ... | B.7 |
| Dairy | Ungraded | 4,500 | Absent in 1 c.c. | ... | ... | None | B.8 |
| Dairy | Ungraded | 35,100 | 0·1 c.c. | ... | ... | None | B.9 |
| Dairy | Ungraded | 20,000 | 0·1 c.c. | ... | ... | None | B.10 |
| Dairy | Pasteurised | 9,000 | 1 c.c. | Negative | ... | ... | B.11 |
| Dairy | Pasteurised | 26,000 | 1 c.c. | Negative | ... | ... | B.12 |
| Dairy | Pasteurised | 13,000 | 1 c.c. | Negative | ... | None | B.13 |
| Street | Ungraded | 5,000 | 0·001 c.c. | ... | ... | ... | B.19 |
| Dairy | Pasteurised | 80,000 | 1 c.c. | ... | ... | ... | B.24 |
| Dairy | Ungraded | 30,000 | 0·001 c.c. | ... | ... | ... | B.31 |
| Dairy | Ungraded | 1,000,000+ | 0·00001 c.c. | ... | ... | ... | B.32 |
| Dairy | Ungraded | 1,000,000+ | 0·00001 c.c. | ... | ... | ... | B.33 |
| Dairy | Ungraded | 7,000 | 0·1 c.c. | ... | ... | ... | B.34 |
| Dairy | Ungraded | 20,000 | 0·00l c.c. | ... | ... | ... | B.35 |
| Dairy | Ungraded | 1,000,000 | 0·00001 c.c. | ... | ... | ... | B.36 |
| Dairy | Ungraded | 25,000 | 1 c.c. | ... | ... | ... | B.37 |
| Dairy | Ungraded | 20,000 | 0·01 c.c. | ... | ... | ... | B.38 |
| Street | Ungraded | 15,000 | 0·01 c.c. | ... | ... | ... | B.39 |
| Dairy | Ungraded | 30,000 | 0·00001 c.c. | ... | ... | ... | B.40 |
| Dairy | Ungraded | 200,000 | 0·01 c.c. | ... | ... | ... | B.41 |
| Dairy | Ungraded | 32,000 | 0·00l c.c. | ... | ... | ... | B.42 |
| Dairy | Ungraded | 3,900 | Absent in 1 c.c. | ... | ... | ... | B.48 |
| Dairy | Ungraded | 3,250 | Absent in 1 c.c. | ... | ... | ... | B.49 |
| Dairy | Ungraded | 49,000 | 0·00l cc. | ... | ... | ... | B.50 |
| Dairy | Ungraded | 16,000 | 0'0001 c.c. | ... | ... | ... | B.51 |