CEREALS IN COMMERCE 



567 



car, either through spouts directly from the bins or by 

 belt conveyors. At terminal elevators the car is un- 

 loaded by means of large scoops, pulled by machinery, 

 but guided by hand. The grain is received into a large 

 pit, at the bottom of which are large conveyors. From 

 the pit the grain is carried to the top of the elevator, 



FIG. 172. Grain elevator, Ludington, Michigan. 



and weighed in scales holding as much as 500 bushels 

 each. After weighing, it is transferred to bins below, 

 from which it may again be taken by gravity or by mov- 

 ing belts to other parts of the elevator, or through chutes 

 to cars or vessels (Fig. 173). Much cleaning of grain is 

 done at the elevator, and mixing of different kinds and 

 grades of grain, for the purpose of improving the total 

 quantity. 



