BRICKWORK. 



101 



In this example (Fig. 22.). advantage was taken of sloping ground to form 

 a coke-shed, which saved a considerable quantity of brickwork. The charge, 

 as it was drawn, fell through the space in front of the retorts, and was carried 

 by an inclined plane into the shed behind. 



This house is considerably larger than that described in the last example, 

 and is furnished with a coal-store. It may, perhaps, be as well to state here, 

 that coal from which gas has to be distilled should if possible be always kept 

 under cover, because, when moisture is present, the hydrogen arising from 

 the decomposition of water will deteriorate the quality of the gas. It is there- 

 fore a matter of oeconomy to construct a sufficient shed to preserve the coal 

 in a dry state. 



The contract for this building, which is 70 feet long, including 

 a chimney 90 feet high, independent of the foundations, was 

 A wrought-iron roof, slated - 

 Ventilator, of wood, and slated - - - 



s. d. 



1200 



190 



43 



1433 



