414 On the Construction of Kitchen 



an inch high, but the side which is outwards is J an 

 inch in height. 



The sand-rim is confined and supported in its place 

 by being fastened, by means of rivets or otherwise, to 

 an inverted hollow truncated cone, c, d, e, f, which 

 forms the upper part of the body of the furnace. This 

 inverted cone, which is turned over a strong circular 

 iron wire at its upper edge, c, d, is 1 2^5- inches in diam- 



eter above measured within the wire, and 5-^ inches 

 in height measured from c to e or from d to f, and is 

 9iV inches in diameter from e to /, where it is fastened 

 to the erect hollow truncated cone, g, k, i, k. 



This last-mentioned erect cone, which is closed be- 

 low by a circular plate of sheet iron, forms the lower 

 part of the body of the furnace. It is 7 inches in diam- 

 eter above, 1 2 inches in diameter below, and its perpen- 

 dicular height is just 9 inches. Its sloping side, g, i, 

 measures about 9^0 inches. 



The fire-place of this little portable furnace is an 

 inverted hollow truncated cone, g, h, /, m, which is 

 7 inches in diameter above, at g, h, and 5! inches in 

 diameter below, at /, m; and its length is 6 inches, 



