410 On the Construction of Kitchen 



ending below with a hemispherical hollow bottom, 6 

 inches in diameter, perforated with many holes for the 

 admission of air. 



Fig. 62. 



'I 



This fire-place is suspended in the axis of the furnace 

 by means of the projecting hollow ring, D, E> belonging 

 to the upper and principal piece, B, C, D, E, of the 

 furnace. At the upper part of this piece there is a 

 circular cavity, a, b, about i inch wide and a quarter 

 of an inch deep, which is destined to receive the lower 

 extremity of the hollow cylinder in which the boiler is 

 suspended. At L is a circular hole, i^ inches in diam- 

 eter, which receives the end of the tube by which the 

 smoke is carried to the chimney. A part of this tube, 

 which is of sheet iron, is represented in the figure. To 

 give it a more firm support in its place, there is a short 

 tube, m, n, of cast iron, which projects inwards into the 

 furnace about f of an inch. This short tube is cast with 

 a flange, and it is fastened to the inside of the piece 

 which constitutes the upper part of' the body of the 

 furnace by means of three or four rivets. Two of these 

 rivets are distinctly represented in the figure. 



The lower part of the body of the furnace consists 

 of the piece, F, G, H, I, and it is fastened to the upper 



