London's Pulse: Medical Officer of Health reports 1848-1972

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Hanover Square 1866

[Report of the Medical Officer of Health for Hanover Square, The Vestry of the Parish of Saint George]

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16
No. 2 14.21
No. 3 12.36
1.85 candles.
No. 1 13.07
No. 2 14.21
1.14 candles.
With respect to purity, all the gases were free from
sulphuretted hydrogen, and so far free from ammonia, that
they did not discolour the turmeric paper, except on January
9th, 16th, and 24th; February 16th and 20th, and March
5th, 16th, and 27th, when the common gas of the London
Company presented traces of ammonia ; also on January 2nd,
15th, and 25th, February 16th and 20th, when the cannel
gas of the Equitable Company presented traces of ammonia.
I was unable to test the cannel gas of the London Company
on January 16th, because it burned 4-10ths short of five
feet.
The Chartered Company have succeeded in obtaining an
official testing-room for my use, at No. 40, Parliamentstreet.

The following Table gives the average light in sperm candles of all the gases:—

Chartered.London.Equitable.
Cannel24.0623.6624.69
Common13.6914.7414.09
match: ALTO ComposedBlock
..\26 February 2013\Folder 3\b18247283\Tables\b18247283_0016_016_003.xml

A Table and Summary were sent with each Monthly
Report on the gas to the Vestry, containing the number of
examinations and the pressures, with the dates, and the
weekly and monthly average illuminating power.
C. J. B. Aldis, M.D., Gas Examiner.


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