Nursing of Sick Animals. 147 



the walls as smooth as possible, so as to be easily disin- 

 fected; except in contagious diseases, the box should be 

 §o placed that the patient can see others of its own kind. 

 The ventilation can be made right if a little attention be 

 given to the matter. We have seen when discussing the 

 physiology of the lungs how essential pure air is, and 

 how that lack of pure air means lack .of means of warmth 

 to the animal. Prof. King (in the Fifteenth Eeport of 

 the Wisconsin Experiment Station) describes a scientific 

 method of ventilating a stable; this method is in use in 

 the dairy barn and the horse barn and veterinary infirm- 

 ary of the Experiment Station. 



A single ventilating flue D E rises above the roof of 

 the main barn and is divided below the roof into two 

 arms A B D, which terminate near the level of the stable 

 floor at A A. These openings are provided with ordi- 

 nary registers with valves to be opened and closed when 

 desired. Two other ventilators are placed at B B, to be 

 used when the stable is too warm, but are provided with 

 valves to be closed at other times. C is a direct 12- inch 

 ventilator leading into the main shaft and opening from 

 the ceiling, so as to admit a current of warm air to force 

 the draft. The air enters the stable at various points F 

 and G> and in the vertical section by arrows at F and G. 

 Parke's system is very similar, as is shown in the venti- 

 lation of an ordinary room, by raising the lower sash of 

 the window a few inches and closing up that open space 

 below it by a piece of board, thus the current of air is 

 not direct as it comes up between the two sashes. The 

 stockman may sometimes have cases requiring a dark- 

 ened stall, such as in lockjaw (Tetanus), the sick stall 



