SILOS AND SILAGE. 195 



guarantee against springing out under the 

 greatest pressure they are likely to undergo. 



The feeding door should be two and one-half 

 to three feet wide and extend in sections from 

 sill to within three or four feet of the top, each 

 part being about five feet long. A space two to 

 three feet wide should be left or iron rods should 

 be placed in between the doors at suflBcient in- 

 tervals to make the wall perfectly strong. One 

 or two extra studs on each side of door casing 

 secure the strength of wall here. Boards as 

 long as the door is wide are placed horizontally 

 in the frame, edge to edge and flush with the 

 inside of silo, resting against cleats nailed on 

 inside of casing or fitting into grooves. These 

 boards may be put in place as the silo is filled. 



Weather boarding is not essential, though in 

 the North it assists in reducing freezing. With- 

 in ' the barn only the inside linings are at all 

 neces^ry. 



Fasten cables or ties of timber across the tops 

 of square or rectangular silos, attaching to op- 

 posite studs, to prevent the walls from spread- 

 ing. Ties every seven or eight feet will answer. 



Sills. — The sills^ well tarred, should rest on a 

 good foundation that extends below frost line 

 and be bedded in cement or mortar. Have the 

 sills placed freely above the outside soil. In 

 square or rectangular forms the sills must be 

 anchored to the wall to keep them absolutely 



