47 



or less air is sure to enter around windows and doors, the intakes 

 may be slightly smaller than the outlets. At the Experimental 

 Farm, this system is in operation in the main cattle barn in which 

 the milking herds are housed, a bull barn, a barn for fattening cattle, 

 a horse stable and the piggery. The main cattle barn 120 feet by 

 50 feet accommodates one hundred head. It has three outlets for 

 foul air each 2 feet by 4 feet, and nine inlets for fresh air, each 3 feet 

 by 10 inches. The fattening barn, 100 feet by 30 feet, which accom- 

 modates 50 head of steers, has two outlets, each 2 feet square, and 



Fattening in the open air at Brandon, Man. 



three inlets each 3 feet by 20 inches. The bull barn, 100 feet by 30 

 feet, has three outlets about 3 feet square and three inlets about 

 3 feet by 20 inches. The bull barn outlets, although considered 

 too large, are stated to work satisfactorily under average conditions. 

 The horse barn which accommodates 25 horses, has two outlets, 

 each about 2 feet square and three inlets each about 3 feet by 18 inches. 

 In all these stables the ventilation is good under all conditions of 

 weather. 



