188 ILLINOIS STATE DAIRYMEN'S ASSOCIATION. 



• Four doors were cut by sawing four staves at an angle of 45 degrees, 

 the long side of the door being inside the silo. In constructing uTe silo, 

 when the place was reached where the row of doors should come one stave 

 was sawed nearly through in the right place for each door, and then the* 

 work of putting in staves continued. A narrow board was Tacked on to 

 prevent breaking this stave in handling. When ready to saw out the 

 doors, this board may be removed, and as many staves out as desired for 

 width of door. 



Late in the season, after the silo was filled, a roof was put on which is 

 rather unique in itself. This consists of three parts. 



First, two 2x6 pieces were laid on edge across the top and center of 



silo, extending north and south, and about 2y 2 feet apart, tne north end 



projecting about eight inches, the south two feet beyond, the staves. These 



were nailed to the staves. The reason for th two foot of projection is to 



hold the end of the carrier while filling. 



Next two more 2x6's were placed on edge on the top of silo, one on each 

 side and outside of the previous 2x6's, the ends projecting 8 inches be- 

 yond staves. To these two pieces were butted and spiked 2x4 pieces, which 

 served as rafters, extending with a slight slope from the upper edge of 

 1x6 to the top of staves, and equally distributed over the section of silo 

 covered, the spaces between being about 2y 2 .feet apart. Where each 2x4 

 rested on a stave, a notch about one inch deep was cut. Tnese two 

 frames of one 2x6 and four 2x4 were then covered with ordinary roof 

 boarding, and each 2x6 hinged to the nailed piece along side of it, and 

 hooked to circumference of silo on inside .A board cover was then laid 

 Over the central space, the boards being nailed to 2x2 pieces which dropped 

 down on each side of the outside 2x6 like a trap door arrangement. The 

 section was also hooked to the central 2x6's. A tinner then covered each 

 section with tin roofing, which was afterwards painted, and the work was 

 done. This roof, which is almost flat, can be easily removed at any time, 

 is of the most convenient type when filling, and is a safe place for any 

 fairly clear headed person to stand on. 



In connection with the construction of this silo, some points should be 

 brought out that have not been thus far referred to. 



