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Sulphur. —This impurity was present in varying quantities,
and nearly always in excess of the quantity allowed
by the Act of Parliament, viz., 20 grains of sulphur to
100 cubic feet of gas.
The average quantity present at 26 testings was
30.61 grains to 100 feet of gas, or 10.61 grains in
excess of the quantity allowed by the Act. It has
been, however, proved that the requirements of the
Act of 1860, with regard to sulphur, are quite impracticable,
so much so, that in the more recent Acts
affecting other Companies, no maximum amount of
this impurity is fixed upon, and the gas referees have
not yet been able to decide upon such quantity.
Ammonia. —The average quantity of this impurity
was 2.4 grains per 100 cubic feet of gas, or 2.6 grains
less than the maximum allowed by the Act affecting
this Company.
I have the honor to remain,
Gentlemen,
Your most obedient Servant.
M. CORNER.