674 



Journal of AgriciiU.iire, Victoria. [10 Nov.. 1917. 



tlirougli which the furnace tender enters. Upon the "jacket" thus 

 formed, the " hopper " is built by constnicting a frame of 2 x 4 scantling 

 extending from the top of the jacki^t wall outward and upward to the 

 wall of the room just below the kiln floor. Uipon the frame thus made, 

 perforated metal lath is nailed, and the "hopper" is completed by 

 covering the lath with a J or | inch layer of cement. The furnace 

 thus stands at the bottom of a shallow, flaring hopper, which is roofed 

 by the kiln floor, with a current of air entering through the ventilators 

 of the jacket, becoming warmed as it passes over the furnace, and rising 

 through the floor above. (See diagram. Fig. XVIII.) This arrange- 



Fig. XVIII. — Detail of Jacket-and-Hcpper Construction. Detail of framing 

 of hopper shown on left hand side and front, framing covered by metal lath 

 with cement partially in place at back. 



ment reduces loss of heat by lateral radiation to a minimum, gives more 

 uniform distribution of the heat to all parts of the kiln floor, and permits 

 the use of the single pipe system with satisfactory results. Some 

 operators claim that the eificiency of their plants is increased 25 per 

 cent, by the adoption of this arrangement, since the time required for 

 drying is materially shortened, even when the floors are more heavily 

 loaded with fruit. 



The chimney should be built in the common wall between two kilns. 

 It should rest upon a solid stone or concrete column extending up to 

 within 18 inches of the point of entrance of the flues. There should be 



