SILOS, ENSILAGE AND SILAGE. 71 



The pressure of the silage against the walls of the silo 

 should of course be taken into consideration in deciding 

 upon the size of the studs required to secure durability. 

 From experiments made with the dynanometer, by Prof. 

 E. M. Sbelton at the Kansas Agricultural College, the 

 lateral thrust of the silage in settling is less than it had 

 generally been assumed to be. 



At a distance of 19 and 20 feet from the surface, the 

 pressure of the silage of corn fodder cut in one-half inch 

 lengths, against the side walls, was found not to exceed 

 57 Ibs. per square foot. From the data thus furnished 

 it will be safe to use 2x4 inch studs for a wall 12 feet 

 high ; 2x6 inch studs for a wall 14 feet high, and 2x8 

 studs for a wall 16 feet high, if they are in each case 

 placed from 16 to 18 inches apart, from center to center, 

 and sheathed on the inside with two thicknesses of 

 inch boards. The sizes given are in fact consid- 

 erably in excess of what is actually required to secure 

 stability, if reasonable care is exercised in other details 

 of construction. 



The inside sheathing boards should be of uniform 

 width (10 to 12 inches), and surface dressed to secure 

 uniformity in thickness. The sills, two inches thick 

 and of the same width as the studs, are laid on a thin 

 bed of cement mortar, and spiked to the anchor blocks 

 in the foundation. No framing or lapping of the sills 

 is required, but where they abut at the corners or on 

 the sides, if the silo is longer than a single scantling, 

 they are fastened together by toe-nailing. When the 

 sills are in place, set the end studs (A, A, A, Fig. 6), 

 one at a time, flush with the inside of the sill, fasten 

 the lower ends by toe-nailing on each side, and keep 

 them plumb by suitable stay laths. Then put on the 

 bottom board (X, Fig. 6,) of the inside sheathing, with 

 the lower edge resting on the foundation wall, and nail 

 it to both sill and studs to bind all strongly together. 



