48 



the "Ideal" double-acting brass spray pump manufactured 

 by the same company, and shown in fig. 5, should be used. 

 The price of this pump varies according to the attachments 

 from $12.00 to $18.00, exclusive of the barrel. This pump 

 can be placed on any barrel and carried about the field in a 

 wagon. 



This company, and also the AV. & B. Douglas Co., Middle- 

 town, Conn., manufacture a "Knapsack" spray pump with 

 an attachment for kerosene. By means of this attachment 

 one can save much time and trouble in not having to make a 

 regular kerosene emulsion, since the water and kerosane are 

 mixed in the act of spraying. These pumps are a great con- 

 venience, but they are rather costly for most farmers. Fig. 

 6 shows one of these pumps made by The Deming Co. The 

 price with the kerosene attachment is $18.00 in the catalogue, 

 but they can be had for $15.00, 



