VENTILATION OF STABLES. 



55 



Fig. 7. 



current through the stable capable of carrying off moisture 

 and impure or noxious air, more rapidly and more perfectly 

 than the ordinary ventilators will allow. When the litter is 

 not wholly removed as soon as soiled, these extra apertures 

 are particularly necessary during the time the stable is being 

 cleaned. The door at the one end, and a window in the 

 other, answer the purpose very well ; better than a window 

 in the roof, when the air is not heated. In cold weather, a 

 large and strong current is not quite harmless when the 

 horses are at home, but it may be freely permitted while they 

 are out. 



Apertures for the Admission of Pure Air. — Most people do 

 not imagine that one set of apertures are required to carry 

 away the foul, and another to admit the pure*air. Even those 

 who know that one set can not answer both purposes in a 

 perfect manner, are apt to disregard any provision for admit- 

 ting fresh air. They say there is no fear but sufficient will 

 find its way in somehow, and the bottom of the door is usu- 

 ally pointed to as a very good inlet. It is clear enough that 

 while air is going out, some also must be coming in ; and 

 that if none go in, little or none can go out. To make an 

 outlet without any inlet, betrays ignorance of the circum* 



