SPRAYING AND SPRAYING APPARATUS. 99 



a stone-boat will often not be able to get down the row, to say 

 nothing of the impossibility of getting through with a power 

 outfit. 



Kinds of Spraying Outfits. For spraying on a very small 

 scale, the knapsack, bucket pump, and five-gallon compressed 



1 



Fig. 46. One of many types of sprayers with power from gasoline 



engine. 



air outfits are very serviceable. The cheapest and most gen 

 erally useful spraying outfit on areas up to five acres is a first- 

 class oil barrel s-et upright on a stone-boat with a good spray 

 pump fastened in it. On larger areas up to 15 or 20 acres the 

 wagon tank with a horizontal hand pump is more practicable, 

 since it has greater capacity and efficiency. On areas of over 

 twenty acres the air-cooled gasoline outfit will usually be a good 

 investment. It relieves the laborious work of pumping by hand, 

 and correspondingly reduces the working force necessary and 

 gives a higher pressure. With a little mechanical ingenuity 

 And care on the part of the operator it should be easily kept 

 in good working order. 



