9 Farmers’ Bulletin 1285. 
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not done, the iron jacket surrounding the kettle and stove is likely 
to rust out rapidly when used for making lime-sulphur concentrate. 
Wood is used as fuel for cooking in these simple plants. 
Figures 3 and 4 show a somewhat improved kettle type of cooker. 
In these plants the kettle has been permanently set in masonry with 
lic. 38.—Simple types of lime-sulphur cooking plants. These are relatively inexpensive 
to build and are well adapted to the making of lime-sulphur concentrate in small 
quantities. In A, all materials and the finished product must be lifted by hand; in B, 
the water is piped to the cooker, and the hillside location and trough facilitate strain- 
ing and filling. 
sufficient space for a fire beneath it. Inclosure of the fire decreases 
the time required to start boiling and assures more even cooking. 
The plant shown as B, Figure 3, has advantages over the plant indi- 
‘ated as A, in that water is piped to the cooker and there is a trough 
so situated that filling of either barrels or spray tank is facilitated. 
