lO 



THE CEREALS IN AMERICA 



bins should be constructed so as to 

 as far as possible, by having smooth 



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I I T I TX 



A, diagram of an elevator: I, endless band and 

 elevator buckets for raising grain; 2, grain belt 

 for nnoving grain horizontally ; 3, zigzag for de- 

 livering grain from belt to hopper ; 4, weighing 

 bin. B, detail of endless band and elevator buck- 

 ets. C, detail of grain belt. D, detail of zigzag. 

 (After Cobb.) 



prevent lodgment of insects, 

 surfaces which are preferably 

 oiled or painted. In order 

 to prevent rats and mice, 

 bins should never be built 

 so that there are air spaces 

 in which these vermin can 

 find hiding places, nor 

 should other objects, such 

 as hay, in which they can 

 find lodgment, be placed 

 against the bins. Wheat 

 in bins made of single 

 thickness of boards 

 and fully exposed on 

 all sides will never 

 be seriously injured 

 by rats or mice. Wheat 

 should never be stored 

 in bags where it can be 

 avoided. Granaries that 

 have been in use should 

 be thoroughly cleaned out 

 and treated to destroy 

 insects if necessary (156) 

 before putting in fresh 

 supplies of grain. Grain 

 already affected with in- 

 sects should be put in 

 quarantine bin and treated 

 before being placed into 

 the granary. Wherever the 

 granary and rice weevil 

 and the Angoumois grain 



