BUILDING THE SILO. 293 



entire absence of corners in the silo. 3, The tend- 

 ency in the walls to spread is entirely taken away. : 

 In the stave silo the hoops when kept properly in 

 place prevent such a result, and in round silos built 

 with a frame the lining w r ithin and without has a 

 similar effect. 



Of the two kinds of round silos, viz., that kept 

 in place by hoops, or the silo built with a frame, the 

 Author most unhesitatingly prefers the former and 

 for the following reasons: i, It is more simple in j 

 its construction and can be built more economically 

 than the other form of round silo. 2, It is easier to ! 

 exclude the air, because of the opportunity that is j 

 always present to tighten the hoops when necessary. I 

 3, It is believed that decay will be less rapid in the 

 stave silo. And 4, Experience has already demon- 

 strated that the frost will penetrate some forms of 

 the round frame silo more easily than a silo made of | 

 staves. The advantages of the stave silo therefore j 

 over the round silo are so clearly drawn that it would j 

 probably be safe to predict that the former though of < 

 more recent introduction is likely to almost entirely j 

 supersede the latter. Since, however, the round 

 frame silo still has some advocates, it may, be well 

 to give in brief outline the essential features of con- 

 struction in building the same. 



BUILDING THE ROUND FRAME SILO. 



The round frame silo consists of a framework 

 of studding resting on a stone foundation and lined 

 within and without with boards laid over tarred or 

 building paper. The frame rests on wooden sills 



