DEVELOPMENT OF COOKING DEVICES 149 



stove carefully to note the flues and see how they may be 

 cleaned. 



173. The Range. A stove which was so arranged as to fit 

 easily into a fireplace was called a RANGE. This term is still 

 applied to a stove which has one of its long sides for the front 

 and the other for the back. In the range, the oven flues are 

 usually so constructed that the products of combustion pass 

 downward at the side of the oven, then circle beneath the oven 



FIG. 114. A range. 



and up to the pipe which is connected at the center of the 

 back of the range. The oven is thus heated on all sides but 

 the front. Examine a range carefully to note the flues and 

 see how they may be cleaned (Fig 114). 



GASOLINE AND GAS STOVES 



174. Principle of the Gasoline Stove. It is evident from our 

 study of gasoline and of gasoline lamps, that any stove designed 

 to burn gasoline should meet the following requirements: 



1. The can for holding the gasoline should be nearly closed, 

 and should be at a safe distance from the flame. 



2. Since much of the gasoline will vaporize as soon as ex- 

 posed to the air, provision should be made to convert all of 

 the liquid gasoline into vapor as quickly as it escapes from the 

 pipes. 



3. The gasoline vapor should be mixed with a sufficient 



