380 THE MANAGEMENT AND FEEDING OF CATTLE 



Where a system of ventilation has not been con- 

 structed, much may be done to secure pure air by the 

 judicious use of windows, of air spaces made well up 

 in the walls and covered with air-admitting cloth, and, to 

 some extent by the chutes for fodder and straw. At all 

 times, however, care should be taken to guard against 

 exposing the animals to draughts. 



