FApXS RELATING TO SILO CONSTRUCTION. 29 1 



silos SO as to resist decay for many years. The 

 first silo built by Mr. John Gould, Aurora Station, 

 O., has not been repaired since it was constructed 

 in 1884, and it is still in a good state of preservation. 

 Since the stave silo has no dead air spaces, it is ex- 

 pected that it will better resist decay than silos that 

 are lined, but some time must elapse before this 

 will be certainly known. Nor is it ordinarily 

 necessary to create dead air spaces in stone silos. 

 When properly built, therefore, they should last for 

 generations. 



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