94 THE BOOK OF THE APPLE 



1. A stove or furnace which will consume any kind of 

 fuel coal, coke, wood, &c. to create the required 

 degree of heat, and it is so simply constructed that only 

 ordinary intelligence is required to manipulate it suc- 

 cessfully. From this furnace runs 



2. An iron pipe, through which the smoke produced 

 ascends, and which may be lengthened or shortened as 

 varying conditions demand. It may be led into the 



1NV1CTA EVAPORATOR 



open air or may terminate in a chimney, as the case 

 necessitates. Above the stove is 



3. A chamber in which the various currents of air, 

 heated more or less by having passed alongside the 

 furnace from the bottom to the top, are so mixed as 

 to cause uniformity in the temperature before the air 

 ascends into 



4. The inclined flues of the trunk. This is constructed 

 of wood, and rests on the stove at a slightly inclined 

 angle. It is divided into two flues, one ascending, the 

 other descending. The flues contain 



5. The trays, on which the material to be dried is 



