20 Of the Management of Fire 



the bottom of the cask somewhat larger in diameter 

 than the tube. 



This circular plate was nailed to the bottom of the 

 cask, and the joining made water-tight by interposing 

 between the metallic plate and the wood a sheet of 

 pasteboard; and the tube was fastened to the plate 

 with solder. This tube (which was about 6 inches in 

 diameter), as soon as it had passed the circular plate 

 and entered the barrel, branched out into three smaller 

 tubes, each about 4 inches in diameter, which, running 

 parallel to each other through the whole length of the 

 cask, went out of it above, by three different holes in 

 the upper head of the cask, and ended in a canal which 

 led to the chimney. 



This tube, by which the smoke passed through the 

 cask, was branched out into a number of branches in 

 order to increase the surface, by which the heat of the 

 smoke was communicated to the water in the cask. 

 The cask was supplied with water from a reservoir 

 placed in the upper part of the building, by means of 

 a leaden pipe of communication from the one to the 

 other ; and the machinery was so contrived that, when 

 any water was drawn out of the cask for use, it was 

 immediately replaced from the reservoir ; but as soon 

 as the water in the cask had regained its proper 

 height, the cold water from the reservoir ceased to 

 flow in it. 



Nothing more generally excited the surprise and 

 curiosity of those who visited this kitchen, than to see 

 water actually boiled in a wooden cask, and drawn from 

 it boiling hot, by a brass cock. I have been the more 

 particular in describing the manner in which this was 

 done, as I have reason to think that a contrivance of 



