London's Pulse: Medical Officer of Health reports 1848-1972
View report page
Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Wandsworth 1914
[Report of the Medical Officer of Health for Wandsworth, Metropolitan Borough]
This page requires JavaScript
254
Report of the Medical Officer of Health.
Table E. Giving in detail particulars relating to the presence or absence of a boron preservative in the 478 samples of Butter submitted during the year.
| Number of samples free from preservative | 67 |
| Number of samples containing 0.05 per cent. or less (in terms of Boric Acid, H3BO3) | 15 |
| Number of samples containing 0.10 per cent. or less but more than 0.05 | 40 |
| Number of samples containing 0.15 per cent. or less but more than 0.10 | 40 |
| Number of samples containing 0.20 per cent. or less but more than 0.15 | 39 |
| Number of samples containing 0.25 per cent. or less but more than 0.20 | 42 |
| Number of samples containing 0.30 per cent. or less but more than 0.25 | 31 |
| Number of samples containing 0.35 per cent. or less but more than 0.30 | 60 |
| Number of samples containing 0.40 per cent. or less but more than 0.35 | 41 |
| Number of samples containing 0.45 per cent. or less but more than 0.40 | 32 |
| Number of samples containing 0.50 per cent. or less but more than 0.45 | 46 |
| Number of samples containing over 0.50 | 25 |
| 478 |
The average content of boron preservative (in terms of
Crystallised Boric Acid) contained in the 334 samples of Butter,
reported as genuine, which contained this preservative amounted to
0-27 per cent., equivalent to 18-9 grains per lb. Butter,