178 THE nor. 



and distribute the volume of heat from the stoves. The 

 cold air currents can be regulated by shutters over the 

 draft holes. It is better that the stoves in the 

 chambers should be set in brickwork, forming an inner 

 circle (Fig. 92, A, and the two upper kilns in Fig. 93), 

 so that the hot air is more concentrated, while 

 the cold drafts do not mingle with it directly and 

 diminish its heat. Upon the floor of joists or oast laths 



FIG. 94. ELEVATION OF THE COMMON HOP KILN. 

 A, Stove room, with stone, brick or plastered walls, but no floor; B, drying room ; 

 C, store room, which has a window in the end, not shown, with tight shutters; 

 E t ventilator; F, platform from which to pass up the bags of green hops; 

 #, door into drying room; //, pipe, or smoke stack from stove, which is to be 

 taken down when not in uso; /, air holes; /stairs 10 platform. The usual 

 dimensions a-e marked on the diagram, but these may be altered to suit the 

 size of the yard. 



horsehair cloth is nailed to prevent the hop dust from 

 falling through, and to keep the hops from burning 

 (Fig. 92, A)." 



The author begs to remark that such "oast 

 houses" are regarded by progressive American hop 

 growers as fifty years behind the times and afford few, 

 if any, tests of value, except of how not to do it. 



