300 



Rural Architecture. 



such a position will not interfere with the work. It is not 

 often that this position can be utilized, and when it can- 





FIG. 155. Modification of Fig. 157, where the air passes straight out 

 through the roof, instead of being carried in and out through the 

 ridge of the roof. This method would give a stronger current, un- 

 less the ventilator passes straight down to the floor between the cows, 

 as represented in Fig. 153. 



not it may be located in various places, as indicated in 

 Figs. 153 to 160. 



446. Openings to the Ventilator. The ventilator should 

 reach to the stable floor so that air may enter the shaft 

 from that level.. This is very important because: (1) The 

 animals not only stand and lie low down but are so consti- 

 tuted as to brcnthe the impurities directly to the floor where 



