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
Hammersmith 1894
Annual report of the Medical Officer of Health of the Parish of Hammersmith for the year ending December 29th, 1894.
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249
INCANDESCENT LIGHTS.
A communication having been received from the Incandescent
Gas Light Company, suggesting the use of their
Incandescent Lamps, enquiries were made with respect
to them, and it was found that there would be a reduction
in the consumption of gas. and an increase of double the
illuminating power from that which was received from
the old flat flame burner. The Brentford Gas Company
were thereupon asked to glaze lanterns to meet the
requirements of the incandescent lights, free of cost to the
Vestry, which they consented to do, and the Vestry have
fixed 20 burners, with by-pass lever and chains and mica
chimney complete, at a cost of 11s. 6d. each, the Company
also to keep them in order, at a cost of 12s. per burner per
annum. The lights have been fixed on the north side of
Shepherd's Bush Common.
TESTING OF GAS.
The gas supplied by the Brentford Gas Company has
been tested two nights a week by the Gas Examiner
(Mr. Howard R. Felkin) in the room fitted up with a
photometer and other apparatus, and the average illuminating
power of 125 experiments was found to be 14.50
candles or 50 candles above the standard of efficiencv.
The statement annexed shews the monthly average of testings of gas supplied during the year ending March, 1895:—
| Month. | Illuminating Power (in standard sperm candles) Corrected. | Sulphuretted Hydrogen. | ||
|---|---|---|---|---|
| Max. | Min. | Mean. | ||
| April | 15.05 | 13.47 | 14.39 | None. |
| May | 16.20 | 14.00 | 14.59 | „ |
| June | 15.30 | 14.00 | 14.61 | „ |
| July | 15.16 | 14.40 | 14.72 | „ |
| August | 14.40 | 13.91 | 14.17 | „ |
| September | 16.20 | 14.60 | 15.10 | „ |
| October | 15.18 | 13.85 | 14.59 | „ |
| November | 14.73 | 14.00 | 14.32 | „ |
| December | 15.10 | 13.96 | 14.40 | „ |
| January | 15.80 | 13.95 | 14.56 | „ |
| February | 14.20 | 13.83 | 14.02 | „ |
| March | 15.10 | 14.20 | 14.44 | „ |
Note.—The standard illuminating power of the gas supplied is 14 sperm
candles; and during the year on 9 occasions the gas was found to be below the
standard, and the Company's attention was called to the deficiency, and their
explanation of the same asked for.