1 62 Of the Management of Fire 



structed, as well as its form, and the door and windows 

 which belong to it, are all seen distinctly in this figure. 

 Fig. 20 is a horizontal section of this fire-place taken 

 on a level with the bottom of the flue which goes round 

 the outside of the boiler, in which flue, before the fire- 

 place was altered, the flame circulated. The flues under 

 the boiler are, in this figure, indicated by dotted lines. 



PLATE V. 



Fig. 2 1 is a horizontal section of the fire-place of the 

 brewhouse boiler, at a level with the top of the flues 

 under the boiler, after the flue round the outside of the 

 boiler had been stopped up, or rather the flame prevented 

 from circulating in it. This figure shows the actual 

 state of the fire-place at the present time. (See page 

 1 08.) 



The crooked arrows show the direction of the flame 

 in the flues ; a, b, are the two canals (each of which is 

 furnished with a damper) by which the smoke goes off 

 into the chimney ; and c, c, c, c, c, c, are six small openings 

 communicating with the flues, by which the flame and 

 hot vapour can pass up into the cavity on the outside 

 of the boiler which formerly served as a flue. 



Fig. 22 is a front view of the ash-pit door of this 

 brewhouse fire-place, with its register. This door is 

 closed by means of a latch of a particular construction, 

 which is shown in the figure. 



Fig. 23 is the door without its register; and 



Fig. 24 the circular plate of the register represented 

 alone. 



This ash-pit door shuts against the front edge of its 

 frame, and not into it. The reasons for preferring this 



