SPRAYING AND DUSTING APPARATUS 



69 



flatter chamber and is variously adapted to give to the liquid a 

 strong rotary motion which helps to break up the liquid into a 



FIG. 41. Row sprayer applying arsenate of lead to potatoes, showing 

 arrangement of nozzles to cover vines. (After Britton.) 



fine spray. There are usually interchangeable discs with aper- 

 tures of varying sizes adapted for all degrees of fineness of spray 

 and for varying the quantity of liquid delivered. Under ordi- 



FIQ. 42 Ver morel, bordeaux, and disk type of nozzles. 



nary conditions only one of these is needed on a rod to deliver all 

 the liquid that the operator can handle properly. This does 

 away with the necessity for " Y's " and lightens the rod. The 

 illustration (Fig. 44) shows many of the modern types. 



