264 



STATE BOARD OF AGRICULTURE. 



Sheeting : 



The sheeting for the inside must be of two layers with tar paper be- 

 tween. Acid proof, water proof paper is better than tar paper. Three 

 pieces 12 feet long or two pieces 11 feet long and one piece 8 feet (I/2 

 of 16 feet) long will reach aronnd from door frame to door frame. 

 There are 36x30=1,080 square feet of surface to be sheeted with two 

 layers of sheeting, requiring actually 2,160 square feet of sheeting, but 

 since sheeting like other lumber, falls short of full width, 1-12 must 

 be added if 3 inch sheeting is used. The amount to be purchased is 

 2,340 feet. Be sure to buy in lengths that will work into 36 feet courses 

 without excessive cutting. 



Paper : 



There will be 1,080 square feet to cover with tar paper, and includ- 

 ing the lap will require not far from 1,200 square feet of paper. 



Siding: 



The courses of siding will be 38 feet long. Two 12 feet lengths and 

 •one 14 feet length will cover this. There will be 38x30=1,140 square 

 feet to cover with siding, and in purchasing, allowance must be made 

 for lap. 



CEMENT SOLID WALL AND BLOCK SILOS. 



The amount of material required will be nearly the same for the two 

 silos. 



To make the blocks for the Stoll silo there were required: 



27 barrels of cement, 



23 loads of sand (23 cubic yards). 

 To make the blocks for the Schipper silo (if it had been built 30 

 blocks high) there would have been required: 



1014 barrels of cement, 



10 loads of sand. 

 For the foundations of any of these silos there would be required : 



3 barrels of cement, 



3 cubic yards of sand and gravel. 

 See Fig. 29, which gives a general idea of how such a foundation 



— /i^l^Jinn^atitt"- -pi^ 



/3' 



Fig. 29. Section of silo foundation with floor at surface of ground. 



should be built. The doors and roofs should not differ materially for 

 the same style. 



CAPACITY OF SILOS. 



The capacity of a silo depends upon : 



1st. Its diameter. 



2nd. The depth of the silage in it. 



A silo with a diameter of 12 feet and with the silage standing 20 feet 



