BUILDING THE SILO. 295 



which of course must be circular in form. It is not 

 necessary to have studs of greater size than 2x4 

 inches, nor is it necessary to have them so close as 

 in the rectangular silo. The inside should be lined 

 with two thicknesses of boards put on horizontally 

 and with joints broken in the same. The boards 

 should be about six inches wide and half an inch 

 thick, and should have tarred or building paper 

 between the two layers, or underneath the 

 layer adjacent to the studs. In cold climates it 

 would probably be necessary to have paper on the 

 inside of the studs and also between the board lin- 

 ings. In mild climates one thickness of boards laid 

 on tarred paper would probably suffice for the inner 

 lining. The outer lining may consist of the same 

 material put on as drop siding and with tarred paper 

 underneath or otherwise, according to the nature of 

 the climate. Ventilation must be provided. (See 

 Page 290. ) When the silo is built inside there may 

 be some conditions in which it will not be necessary 

 to put on any outer lining. The roof, like the silo, 

 will be circular, and it will usually be necessary to 

 have a roof when the silo is built outside. 



BUILDING THE STAVE SILO. 



The stave silo may be located within or with- 

 out although more commonly it is placed outside 

 of the stable or barn. Sometimes it is located in 

 one corner of the outbuilding partly within and 

 partly without the same. It may of course be made 

 large or small and may go down into the ground or 

 be placed on the surface. In building it there is 



