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
Poplar 1920
[Report of the Medical Officer of Health for Poplar, Metropolitan Borough]
This page requires JavaScript
53
Cost of Material and Electricity.
The cost of material in manufacturing 39,255 (strong) gallons of the electrolytic fluid was as follows:—
| £ | s. | d. | |
|---|---|---|---|
| Electricity, 9,529 units at 11/2d. (with 65-85 per cent, advance) per unit | 105 | 7 | 3 |
| *Chloride of Magnesium, 7 tons 9 cwt. 3 qrs | 100 | 15 | 6 |
| *Salt, 4 tons 17 cwt. 2 qrs. | 23 | 17 | 6 |
| *Caustic Soda, 10 cwt. 1 qr. 4 lb | 26 | 2 | 11 |
| Water | 2 | 15 | 5 |
| Total cost of materials to produce 39,255 gallons (strong) broken down to 78,510 gallons | £258 | 18 | 7 |
| Electric motor for stirring : 233 units | 2 | 11 | 6 |
Bottles, Corks and Labels,
| Bottles | 87 | 0 | 2 |
| Corks | 4 | 13 | 0 |
| Labels | — | ||
| £91 | 13 | 2 |
Total Quantity Manufactured since Installation of Plant.
Since the installation of the plant, a period of 15 years, 576,759
gallons of fluid have been manufactured (see footnote page 54)
at a cost for electricity of £769 3s. 41/2d., and materials of £938 4s. 7d.,
less than 1d. per gallon (previous to the war the cost was under 1/2d. per
gallon, but even with the strong fluid which at present is being made
and is broken down the cost is still about 1/2d. per gallon when the gallons
are reckoned in bulk)†.
* The price of these materials has considerably increased in recent years.
† See "Comments on Adverse Criticism," Annual Report, 1911.