Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Lambeth]
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9
RESULT OF 1600 OBSERVATIONS
OF THE
ILLUMINATING POWER OF THE GAS
Made on 80 occasions, during the Year 1868—69.
GAS COMPANY.
No. of
occasions
Gas
tested.
Where Tested.
Average
Illuminating
power.
Tests for Parity,
Ammonia,
Sulpheretted
Hydrogen.
The London
28
The Vestryhull,
Kennington.
EQUAL TO
14.75 Sperm
Candles.
Pure.
The Phoenix (Vauxhall)
28
The Vestryhall,
Kennington.
14.31 Sperm
Candles.
Pure.
The Phoenix (Bankside)
2
The Testing
honse, Wellington
St.,
Blackfriars.
14.65 Sperm
Candles.
Pure.
The Crystal Palace
District
11
The Works,
Lower Sydenham.
14.12 Sperm
Candles.
Pure, except
on five occasions
Ammonia
present.
The South Metropolitan
11
The Testinghouse,
Hill
Street, Peckham.
14.03 Sperm
Candles.
Pure.
(Ry Order)
THOMAS ROFFEY,
Vestry Clerk.