PRINCIPLES OF SPRAYING 



429 



ments should be used by beginners, but if a much larger outfit 

 will be needed in a year or two, do not be afraid to make the 

 investment at first. 



FIG. 298. Spraying is much less laborious when a gas engine is employed for the work 



(New Jersey Station.) 



FIG. 299. Spraying outfit with tank for liquid below, air pressure tank above and air 

 pump operated by chain gear from hub of truck wheel. (Fights of the Farmer.) 



