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
Poplar 1921
[Report of the Medical Officer of Health for Poplar, Metropolitan Borough]
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Cost of Material and Electricity. The cost of material and electricity in manufacturing 51,330 (strong) gallons of the electrolytic fluid was as follows:—
| £ | s. | d. | |
|---|---|---|---|
| Electricity, 11,670 units at 1½d. (with 85 per cent, advance) per unit | 134 | 18 | 8 |
| *Chloride of Magnesium, 8 tons 16 cwt. 3 qrs. 131b | 135 | 7 | 1 |
| *Salt, 11 tons | 60 | 0 | 0 |
| *Caustic Soda, 10 cwt. 1 qr. 4 lb. | 22 | 18 | 0 |
| Water | 2 | 2 | 9 |
| Total cost of materials and electricity to produce 51,330 gallons (strong) broken down to 102,660 gallons | £355 | 6 | 6 |
| Electric motor for stirring: 289 units | 3 | 6 | 11 |
| Bottlfs, Corks and Labels | |||
| Bottles | |||
| Corks | 10 | 1 | 0 |
| Labels | 6 | 0 | 0 |
| £16 | 1 | 0 | |
Total quantity of water used for all purposes, 256,000 gallons, cost
£10 13s. 4d.
Total Quantity Manufactured since Installation of Plant.
Since the installation of the plant, a period of 16 years, 628,089
gallons of fluid have been manufactured (see footnote page 54)
at a cost for electricity of £904 2s. Old., and materials of £1,158 12s. 5d.
* The price of these materials has considerably increased in recent years.