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
Lambeth 1870
[Report of the Medical Officer of Health for Lambeth]
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9
RESULT OF 1860 OBSERVATIONS
of The
I L L U M I N A T I N G POWER OF THE GAS
Made on 93 occasions, during the year 1870-71.
Gas COMPANY.
No. of
ssions
Gas
tested.
Where tested.
Average
Illuminating
power.
Tests for purity,
Ammonia,
Sulphuretted
Hydrogen.
The London.
41
The
ton.
Equal to
15.35 Sperm
Candles.
Pure.
The Crystal Palace
District.
11
The Works,
Lower Sydenham.
15.11 Sperm
Candles.
Pure, except
on one occasion,
traces of
Ammoniapresent.
The Phoenix.
41
The Vestry,
hall, Kenning,
ton.
14.90 Sperm
Candles.
Pure.
(By Order)
THOMAS ROFFEY,
Vestry Clerk.