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Arsenical Paper. Samples of paper made with emerald
green, and taken from two houses in the Out-wards, have
been tested by Dr. Aldis, and found to be loaded with
arsenic. The occupiers were warned of the risk they
incurred in allowing it to remain on the walls.
Amongst these special cases, it is as well to put on
record that of No. 2, Shepherd's-market, in which a
newly-built house, supposed to be well drained by pipes,
was drenched by the reflux of its own sewage, which
filled the cellars and the space under the kitchen floor, and
poisoned the earth around. It was found that the pipe
drain had not been connected with the sewer, but had
been made to terminate in some old brick drain without
an outlet.
APPENDIX. No. IV.
gas.
Ninety-six observations were made during the quarter
upon the six gases supplied by the Chartered, London, and
Equitable Companies, at the Works in Horseferry-road, 73
Bessborough-street, and 78 Cambridge-street respectively.
Each experiment was made in accordance with the
Metropolis Gas Act, 1860, and the illuminating power
continued above the standard light required by the Act.
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 exposed under
a pressure of five-tenths of an inch of water, except
on February 5th, when the cannel gas from the Chartered
Company presented traces of it.