27 



the spraying of fielcl crops sown either -broadcast or in rows, 

 or in spraying higher plants set in rows and which do not exceed 

 six to eight feet in heigth. For work of the latter class, the 

 nozzle arrangement is altered, from three to f our being mounted 

 upon upright standards secured at each side and at the rear of 

 the machine. The cost of the machine complete for use is 

 about $125.00. 



The fourth type consists of a small engine, pump and tank 

 mounted on trucks and is probably the most satisfactory form 

 of power sprayer, for extensive orcharding operations. Figu- 

 res 8 and 9 iliustrate typical sprayers of this class. The 



/ 



Figure 8 



Figure 9 



