Hand and Power Pumps 



115 



charding the growers arc likely to expect too much service 

 from a single machine, whether it be a hand or power out- 

 fit. Instances in the Middle West are very common where 

 the growers will try to cover 200 or 300 acres with a single 

 power machine. 



A Power Sprayer in Operation. 



There are several different makes of power machines 

 on the market, such as those deriving their power from 

 steam, gasoline, compressed air or gas, but up to the pres- 



