328 



Kansas State Board of Agriculture. 



I 



FIG. 275. A grain and seed cleaner and grader. 

 [Courtesy Sutton, Steele & Steele Mfg. M. and M. Co.] 



make a valuable asset to the farmers' union elevator, where all of the 

 farmers in a community could use it. Seed graded in one of these ma- 

 chines must first be graded as to size by a good screen mill. (See 

 "Cleaning," in index.) 



SELECTION. 



All of the machines that have been discussed are already found on the 

 Kansas farms. In the selection of these and special machines there are 

 several points to bear in mind. A few farms are overstocked with ma- 

 chinery, with the result that depreciation, interest on the money invested 

 and repairs take too much of the profits. Ordinarily the opposite condi- 

 tion is true not enough machinery is used. 



Before deciding to buy a new machine, the elements of cost with and 

 without the new machine, and with the old machine on hand, should be 

 carefully considered. Items of cost with the machines are labor cost, 

 fixed annual charges, and efficiency. The fixed annual charges include 



