340 THE HORSE 



of managing air in stable or house is usually the most 

 satisfactory; since the air is likely to be acted upon 

 by pressure and counter- pressure currents, and contrac- 

 tion and expansion, the best planned complex system too 

 often utterly fails. Warm air will carry more moisture 

 than cold air. If, then, cold, dryish air be introduced 

 into the stable near the floor, or mid- way between floor 

 and ceiling, and is then warmed by the heat of the ani- 

 mals, it will take up the moisture as thrown off by 

 respiration, and, as the air becomes warmer, it will 

 become lighter and rise where it will find easy egress 

 out of the stable, either at one end or one side, through 

 the perforated box at the ceiling. At which point it 

 escapes will depend upon the pressure or the direction 

 of the wind. Moist and vitiated air, like house sewage, 

 should be removed by the straightest, quickest, simplest 

 and most direct route. 



MANURES 



A good and convenient arrangement, though not by 

 any means the best, is to provide a covered yard 

 beneath the stable, into which the excrements may be 

 thrown for temporary storage. In such an arrangement, 

 the danger is that the basement story will be built 

 largely under ground and be too low. If so, it cannot 

 be suitably lighted and ventilated. If properly con- 

 structed, and the floor above is made tight and the 

 manure is cared for as it should be, such arrangement 

 will be fairly satisfactory. If a lower story (not a 

 cellar) is used for the temporary storage of the manures 



