194 



THE CREAMERY PATRON S HANDBOOK. 



form dead air spaces, which will insure perfect preservation of the silage 

 clear up to the silo wall. The early stone silos were not protected in this 

 manner, and, as a result, the silage often spoiled several inches around the 

 silo walls, the stone being more or less porous, and being a fairly good con- 

 ductor of heat and cold. This applies still more to brick than to stone 

 walls. With the outside covering nailed to studdings, 2x4, no trouble will, 

 however, be experienced in either case. Ventilation of the silo frame must 

 be provided for as in the case of wooden silos. 



The following arrangement of constructing stone silos has proved very 

 convenient, and will make good, substantial silos. The silo is built five to 



CONSTRUCTION OF A KING CIRCULAR ALL STONE SILO. 



A shows a section of the silo, with conical roof, and the arrangement of filling, and feeding doors. 

 B and C are ground plans of circular and rectangular stone silos; D, E. F shows construction 

 of feeding doors. The construction of door jambs, to make them air tight, will be seen in the 

 illustration. The doors are made of two layers of 4-inch matched flooring, with a layer of 2-ply 

 saturated acid and alkali proof paper, and are held in place with large screws or lag bolts, as 

 shown in E and F. The face of the jambs should be lined with 2-ply P. and B. Ruberoid 

 paper or its equal; this will act as a gasket to make the door perfectly air tight. 



six feet into the ground, if it can safely be done; the foundation wall is made 

 two feet thick, and at the level of the ground a 4x6 sill is laid on the outer 

 edge of the wall and bedded in mortar; a wooden frame is then erected of 

 2x6 studding, sheeted on the inside with common flooring, and on the outside 

 with ship lap boarding, with or without building paper on the studding. 

 The stone wall is then continued on the inside of this wooden frame up to 

 the plate, the corners well rounded off, and the whole inside cemented. 



The stone or brick wall must be made smooth by means of a heavy 

 coat of a first-class cement. Since the acid juices of silage are apt to gradu- 

 ally soften the cement, it may be found necessary to protect the coating by 

 a whitewash of pure cement every other year before the silo is filled. II 



