106 HOW TO BUILD A SILO. 



to 12 inches at the top, keeping the inner surface of the 

 silo perpendicular. It is important to have five-eighths inch 

 iron rods, with angles on the ends, laid in the wall at 

 intervals between each door, to keep the walls from crack- 

 ing or spreading before the mortar or cement is thoroughly 

 Bet. These rods may be of several lengths, laid to the 

 curve of the wall, and the angled ends should lap by each 

 other for three or four inches. 



It will be well to place silos a distance below the sur- 

 face. This should not be deep enough on level land, how- 

 ever, to require great exertion to get out the silage. Under 

 such circumstances four feet is deep enough. (Plumb.) 



Details concerning the construction of stone, brick, 

 and cement silos are given in Prof. Woll's Book on Silage, 

 and in Bulletin No. 83 of Wisconsin Experiment Station, 

 by Prof. King as well as in numerous other pamphlets, 

 and we shall not take up further space here with the 

 discussion thereof. The same holds true with all other 

 forms of silo construction than those already explained, 

 except the one kind, where silos are built in a bay of the 

 barn. In order to use the space economically, these silos 

 are built in a rectangular form. 



Silos in the Barn. 



A large number of silos have been built in the barn, 

 especially in the early days of silo construction. Where 

 the necessary depth can be obtained and where the room 

 can be spared, such silos can be built very easily and at a 

 less cost than a separate structure, since lighter materials 

 in construction may be used in this case, and no roof will 

 be required for the silo. Silos built in this manner have 

 generally the advantage of being near at hand. Since 

 feeding time comes twice a day, at least, throughout the 

 winter and spring, a few steps saved in hauling the silage 

 mean a good deal in the aggregate. Many farmers first 

 made silos of this kind, and, later on, when familiar with! 

 the silage and siloing process, built additional separate 

 structures. 



