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27
During the same period, the gas supplied to the
room in Ebury Mews, burned in a batswing burner, at
the rate of 2.5 feet per hour, gave a light equal to
that of 10.20 sperm candles, consuming 120 grains per
hour, and presented no trace of sulphuretted hydrogen.
Dr. Aldis was occupied three hours on Saturday, May 5,
1860, in burning a cubic foot of gas over liquid ammonia,
and collecting the products, which had passed through the
condensing tube. These were submitted to careful analysis,
in order to ascertain the amount of sulphur, which equalled
•01524362 grammes, which multiplied by 15.4 gave 0.234696
grains of sulphur in one cubic foot, and
2.34 grains in 10
23.45 grains in 100 cubic feet.