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equal to 1163 candles. That when the pressure was 8-tenths
of an inch, the consumption and illuminating power were the
same as before; but when it was 12-tenths of an inch (which
it always is from dusk up to about 10.30 p.m.) the consumption
was 5.8 feet per hour, and the illuminating power of 13 candles.
It is, therefore, evident that the Board gets at least the quantity
of gas it pays for. I then tested Bronner's burners, the
diaphragon or stop of one being broken, I found that with
8-tenths pressure, the one with the damaged stop consumed
5.75 feet per hour, and gave a light equal to 13 candles; with
12-tenths pressure, it consumed 6.70 feet per hour, and gave 15
candles' illumination. The perfect Bronner's burner, with
8-tenths pressure, consumed 4.60 feet per hour, and gave a light
equal to 10 candles; but with 12-tenths pressure it consumed
5 feet per hour, and gave a light of 13.5 candles. The fish-tail
burner, with 8-tenths pressure, consumed 6 feet per hour, and
gave a light of 11.2 candles only; and with 12-tenths pressure
it consumed 7.7 feet per hour, and gave a light of 14.8
candles, so that the illuminating power of 10-feet gas, burned
in two of Bronner's burners, at 12-tenths pressure, was equal to
27 candles, as against only 19 candles when burned in two
of the fish-tail burners. Similar results to these with Bronner's
burners were subsequently obtained with Sugg's patent fiatflame
burner.
There have been 31 cases of over-crowding discovered,
which were so bad as to be injurious to health. I say discovered
because they were all found out by inspection, and not one
from complaint. Amongst these I will mention the following:
at No. 3, Sheep Lane, the father, mother, a son of 17, a
daughter of 15, a boy of 8 years, and an infant lived and slept
in a small room containing only 925 cubic feet of air, and