60 HOW TO BUILD A SILO. 



Round Wooden Silos. 



Round wooden silos were first described, and their use 

 advocated, in Bulletin No. 28, issued by the Wisconsin 

 Station in July, 1891, and hence have come to be known 

 as "Wisconsin Silos." The first detailed and illustrated 

 description of this type of silos was published in this bulle- 

 tin; since that time it has been described in several bulle- 

 tins and reports issued by the station mentioned, and in 

 numerous publications from other experiment stations. 

 All writers who have discussed the question of silo con- 

 struction agree that this form of silos is admirable, and 

 the best that can be put up where a durable, first-class silo 

 of a moderate cost is wanted. This type, and the one to be 

 described in the following, the stave silo, are practically 

 the only kind of wooden silos that have been built in this 

 country during late years, except where unusual conditions 

 have prevailed, that would make some other kind of silo 

 structure preferable. 



The following description of the Wisconsin silo is from 

 the pen of Prof. King, the originator of this type of silos, 

 as published in Bulletin No. 83 of the Wisconsin Station 

 (dated May, 1900). 



The Foundation There should be a good, substantial 

 masonry foundation for all forms of wood silos, and the 

 woodwork should everywhere be at least 12 inches above 

 the earth, to prevent decay from dampness. There are 

 few conditions where it will not be desirable to have the 

 bottom of the silo 3 feet or more below the feeding floor 

 of the stable, and this will require not less than 4 to 6 

 feet of stone, brick, or concrete wall. For a silo 30 feet 

 deep the foundation wall of stone should be 1.5 to 2 feet 

 thick. 



The inside of the foundation wall may be made flush 

 with the woodwork above, or nearly so, as represented in 

 Fig. 1, or the building may stand in the ordinary way, flush 

 with the outside of the stone wall, as represented in Fig. 

 2. In both cases the wall should be finished sloping as 

 shown in the drawings. 



