34 SPRAYING CROPS 



can be used in spraying all sorts of crops, and may 

 well be mounted on separate wheels, as in the Chester 

 sprayer shown herewith, or the barrel may be placed 

 in a wagon when in use. 



A cheap and efficient homemade spraying cart, 

 designed by Professor F. D. Chester, is illustrated 

 on page 35. According to Professor Chester : "It can 

 be made by any wheelwright, and consists of a truck 

 mounted upon a pair of carriage wheels. Upon this 



The Knapsack Sprayer 



(Alter Bailey) 



is placed a barrel holding 50 gallons, held in place 

 by a strap, which surrounds the same and which is 

 tied in front at either trace. The barrel has a tight- 

 fitting cover, firmly strapped in place ; upon this is 

 seated the pump. In the large cover is an opening, 

 covered by a lid for filling. Any good force-pump 

 can be used upon the barrel, but it is important that 

 it should be good, and the cheapest are in the long 

 run the dearest. The cheaper iron pumps are excel- 

 lent at first, but will soon corrode where caustic 



