98 5/7,05: CONSTRUCTION AND SERVICE 



to the top of silo. The silo wall is to be securely and prop- 

 erly reinforced with steel. On one side of said silo a door 22 

 inches wide in the clear is to be constructed, commencing 

 near the bottom of said silo and extending to within about 

 five feet of the top of the silo. On each side of said door 

 opening from the bottom of the first opening and extending 

 to the top of the last opening, door-jambs are to be built of 

 concrete, made by mixing four parts sand and gravel and one 

 part cement. In said door space are to be placed horizon- 

 tally reinforced concrete crossties about every four feet. The 

 silo is to be covered with concrete roof conical in shape, prop- 

 erly reinforced, and an opening of convenient size is to be left 

 therein for the filling of the silo. 



