158 



FIELD CROPS 



cheaper, and is desirable if one can get the thrashing machine 

 at the proper time so the work can be done as soon as the 

 grain is in fit condition. On farms of moderate size, where 

 the thrashing is hired, it is seldom possible to get the machine 



Fig. 56. 



An elevator where wheat is stored and from which it is loaded into 

 boats for shipment. 



just when desired. The difference in cost is not sufficient to 

 warrant taking chances of injury to the grain by bad weather, 

 and it is better to stack wheat as soon as it is dry enough 

 after cutting than to take chances by waiting for a machine. 

 When wheat is stacked, it goes through what is called a 



