number of gasometers 6, average contents of each 15,077 cubic feet; the
contents of the whole 90,467; another gasometer containing 16,655 cubic
feet; the average number of retorts worked 55; the coals consumed 3,336
chaldrons; quantity of gas produced 40,040,000 cubic feet; the number of
lamps supplied 3,860 private, and 629 public, through 25 miles of mains.

The whole annual consumption of coals by the three different stations
was 20,678; the quantity of gas produced 248,000,000 cubic feet: the
whole number of lamps lighted by this company 30,735, through 122 miles
of mains.

The City of London Gas-Light Company, Dorset-street:--The number of
retorts fixed 230; the number of gasometers 6; the largest 39,270 cubic
feet, the smallest 5,428 cubic feet; two large additional gasometers
nearly completed, contents of each 27,030 cubic feet, making in the
whole 181,282 cubic feet. The number of lamps lighted 5,423 private, and
2,413 public, through 50 miles of mains. The greatest number of retorts
worked at a time (in 1811) 130, the least 110, average 170. The quantity
of coals carbonized amounted to 8,840 chaldrons; produced 106,080,000
cubic feet of gas.

The South London Gas-Light and Coke Company, at Bankside:--The number of
retorts was 140; gasometers 3; the contents of the whole 41,110 cubic
feet; and their mains from 30 to 40 miles in length. At their other
station in Wellington-street, they had then no retorts in action; but
three large gasometers were erected, containing together 73,565 cubic
feet, which were supplied from Bankside till the retorts were ready to
work.

The Imperial Gas-Light and Coke Company were erecting at their Hackney