BUILDING SILOS AND MAKING SILAGE. 



ROOF. 



193 



Much time and expense will be saved if the roof is not put on until 

 the silo is filled the first time. This will obviate the necessity of building 

 a high and expensive staging, for the silage can be used for that purpose. 

 The roof may be made of boards. A board roof answers every purpose, 

 costs but a few dollars, and can be put on in a very short time. A pair 

 of strap hinges can be fastened to two or three of the boards, which will 

 make a cheap and convenient door for taking in the cut corn. 



There is nothing to be gained by having a water proof roof, as moisture 

 is not detrimental to silage. The main object of a roof is to keep the tub 



TWO ROUND SILOS WITH STONE FOUNDATIONS AT HUBBLETON, WIS. 



in shape while empty and keep out the snow in winter. Many silo builders 

 are now putting on flat roofs, and some are building without any roof 

 at all. 



STONE SILO. 



Another form of silo that is practically everlasting and particularly 

 recommends itself in those localities where there is an abundant supply of 

 stone is the stone silo. While we have had no personal experience in their 

 construction we here compile the following suggestions and illustrations 

 from the works of Professors Woll and King (Wisconsin Experiment Sta- 

 tion) . 



The stone walls should be at least sixteen inches thick, and should be 

 jacketed with wood on the outside, to prevent injury from frost, and to 



