STABLING SUITABLE FOR CATTLE 379 



system," from its originator, Prof. F. H. King, formerly 

 of the Wisconsin agricultural experiment station. The 

 essential features of this system are as follows: (i) 

 Cold air from without is admitted into box ventilators 

 placed in the walls. It enters these just above the sill, 

 is carried upward through them into the stable, which 

 it enters by means of openings a short distance below 

 the stable loft. The dimensions of these and the number 

 called for is dependent on the size of the stable. The 

 width of these is seldom more than i8 inches and the 

 distance across from side to side more than 6 to 8 inches, 

 or the distance between the outer wall and the lining of 

 the building. The inner opening should be provided 

 with an adjustable cover to shut ofif the intake when 

 desired. (2) Foul air is carried away by box ventila- 

 tors of sheet iron or wood. It enters the ventilator in 

 an opening near the fioor, which is always open, and, 

 if covered with coarse wire netting, light material, as 

 straw, will not be sucked into the same. They extend 

 upward above the plate and are then carried along 

 under the roof to an opening usually crowned with a 

 cupola. (3) Just below the ceiling, a door is hinged 

 on the front side of the ventilator which may be drawn 

 up with a rope and pulley as far as desired. A slide of 

 equal dimensions will answer, but is not so convenient. 

 The object sought is to create an air current in warm, 

 muggy weather, which will aid greatly in carrying out 

 the warm air. 



One of the best ventilated cattle stables at the Michi- 

 gan experiment station is 80 feet long and 45 feet wide. 

 It has four intakes on each side of the building, 18 x 8 

 inches, and two ventilators 22 x 14 inches, also on each 

 side. The openings of the intakes outside and in are 

 about 7 inches broad, and the openings into the ven- 

 tilators near the floor and near the ceiling are about 24 

 inches from top to bottom. These have furnished what 

 has been considered sufficient ventilation. 



