FORTY-THIRD ANNUAL CONVENTION 15? 



those outgoing flues, and then they rust. For these reasons 

 agricuhural engineers recommend two thicknesses of match 

 lumber with building paper between. While it costs more, it 

 will be more serviceable and will last a lifetime. 



See Cut D. 



Another method of taking the foul air out. The fresh air 

 comes down in the center. Some people object to the outtakes 

 shown in ''B" because they interfere with the hay mow. 



Mr. Mason : "Won't those ventilators draw better if they 

 run right straight up?" 



A: "Yes." 



See Cut E. 



Here is an illustration of the method of taking fresh air into 

 different kinds of foundations when one is building a barn. 

 Sometimes you find a barn against an embankment — how can 

 the air be taken in? Here again is a place where you have a 

 foundation already built, you can put in the King System. King 

 found in his experiments that there ought to be at least five feet 

 between the opening on the inside of the stable and the opening 

 on the outside. Where this distance was shortened it would not 

 work as satisfactorily. 



The reason why some people have trouble with ventilation 

 is because they do not connect up tightly with the ventilator on 

 the roof. The air that is taken from the outgoing flues is 

 poured out into the hay mow and some of it comes out again 

 from the hay mow down into the barn. You need a tight con- 

 nection here. ("CC") 



The ventilator on the top of the roof should correspond in 

 size to the shaft that it is connected with. (Half-lone No. i.) 



The plank frame method is a cheaper method of construct- 

 ing barns, it is actually stronger. Contractors tell me that wlien 

 they have taken the timbers that used to be used and cut into 

 them in order to fit pieces into them there was actually less of 

 the timber left for enduring the strain than there is when the 

 plank is used. By putting these planks together with bolts the 



