Gasometer-house, built of frame-work and weather-boarded 250 0 Twenty-four retorts set in brick-work, with furnaces } 336 0 for ditto, compleat } Sundries 100 0 --------- £ 1940 11 * * * * * A gas-light apparatus complete for work, capable of affording every twenty-four hours a quantity of light equal to 1,400 Argand’s Lamps, each lamp equal in intensity to six candles, six in the pound, burning for five hours, will cost 3,500_l._ if erected in this metropolis. LONDON Price List of the most essential articles[44] employed in the erection of a Gas-Light apparatus. [44] All the articles are warranted to be perfect and of the best kind. They are delivered free of expence at any wharf between London and Westminster-bridge. Sheet-iron pipes brazed. _s._ _d._ ¼ inch in diameter 0 4 a foot} ⅜ ditto 0 4 ditto} ½ ditto 0 5 ditto} ⅝ ditto 0 6 ditto} ¾ ditto 0 6½ ditto} in ⅞ ditto 7 ditto} 15 1 inch, ditto 0 7½ ditto} to 1¼ ditto 0 9 ditto} 18 1½ ditto 0 10½ ditto} feet 1¾ ditto 0 11 ditto} lengths. 2 inch, ditto 1 1½ ditto} 2¼ ditto 1 4 ditto} 2½ ditto 1 5 ditto} 3 inch, ditto 1 6½ ditto} Copper pipes brazed ¼ inch 0 4 per foot Ditto, ditto, ditto ⅜ inch 0 5½ ditto Gas-light cockspur burners with stop-cock 2s 6d to 3s 6d Argand’s lamps, with glass-holders, from 3s to 4s 6d Cast-iron retorts, weighing 7 cwt. at 15s 6d per cwt £5 8 6 Mouth-piece for ditto, compleat 1 14 8 Cast-iron door frames for retort furnace 1 0 0 Furnace bars 10s. per cwt. Sheet iron for gazometer (No. 23) 24s. per cwt. Gazometer chains, 5d per lb. Ballance weights [Plates] for gazometer, 9l 10s per ton. Cast-iron cistern plates ------------------------ smaller size for lime machine, 18l per ton. ------------------------ middling size for tar cistern, 16l ditto ------------------------ largest size for gazometer cistern 14l ditto Cast-iron flanch pipes 2-inch diameter, at 5s per yd. in 6 feet lengths