140 GASOMETERS. 



Estimate for Excavation and Brickwork of Tank. 



s. d. 



2625 Cubic yards of excavation, in stiff marl, at 1 s. Sd. 218 15 

 35 Rods of stock brickwork, in mortar, at 13 - 479 5 

 590 Cubic yards of puddling, to stop land-springs, 



and filling in, at Is. 9d. - - - - 51126 



749 12 6 



The large gasometer at the Pancras Station of the Imperial Company is 

 100 feet diameter and 39 feet high at the sides, containing 300,000 cubic feet. 

 Tts weight is as follows : 



Tons. Cwt. Qrs. Ibs. 



30 Pieces of bottom curb - - - 61612 



8 Bags of rivets - - 9 3 10 



60 Plates and rivets for bottom curb - 0114 



24 Bottom eyes - ----080 24 



100 Small sheets, 2 plates each, for side plates - 2 8 17 



300 Large ditto, 6 plates each, ditto - - 19 6 7 



30 Short pieces of angle-iron bottom curb 0300 



24 Vertical stays - - - - -10 16 20 



60 Pieces of angle-iron top curb - 2 13 1 26 



350 Short bracket irons, for crown framing 1 9 117 



4 Bags of rivets - - - 5 



1 Centre crown plate - - 9 3 1 7 



1 Cast-iron cup and ring - - - 01826 



1 Centre pipe - - 10 23 



6 Bags of rivets - 0932 



1 Ditto f-bolts - 0336 



150 1-inch bolts for top curb - - - - 0501 



50 Upright rods - ---2113 19 



50 Ditto ditto, 6 feet long - - - - 1220 



50 Ditto ditto, 3 feet 6 inches long - - - 0907 

 150 Long braces ------3419 



196 Crown plates - ----17 52 15 



8 Diagonal stays, at centre pipe - - - 0228 



48 Small plates, at bottom and top curb - - 0404 



1 Man-hole, cover, ring, and bolts - - 1 24 



130 Small plates for joints and bolts - - - 3 15 



Carried forward - - 72 19 Oil 



