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 1874
[Report of the Medical Officer of Health for Lambeth]
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9
RESULT OF 1140 OBSERVATIONS
of the
ILLUMINATING POWER OF THE GAS.
Made on 114 occasions during the year 1874-75.
Gas Companies.
No. of
occasions
Gas
tested.
Where tested.
Average
Illuminating
Power.
Tests for purity,
Ammonia,
and Sulphuretted
Hydrogen.
The Phœnix
51
Vestry Hall
14.97
Free from
Ammonia and
Sulphuretted
Hydrogen.
The London
51
Ditto
15.25
Ditto ditto
The Crystal Palace District
12
Crystal Palace
15.13
Free from
Sulphuretted
Hydrogen, and
on one occasion
slight traces of
Ammonia.
(By Order)
THOMAS ROFFEY,
Vestry Clerk.