No. 4.] 



STABLIO VENTILATION. 



117 



greatest disadvantaiie. Our aim should l)e in the building 

 of our barns to so construct them that this force may operate 

 to the best advantage to remove the foul air and provide the 

 occupants with fresh air. It is one of the fundamental 

 principles which should always l)e taken into account in pro- 

 vidino- eti'ective ventilation, that the air introduced into the 

 stable shall be pure. Such cannot be the case when the air 

 comes through the floor and scuttles, from a close cellar filled 

 with manure, or from ofl' a pile of decomposing excrement 

 just beneath a wall scuttle in the rear of the animals (Fig. 1). 



Fig. 1. — Section of Btable, In which wall scuttles arc used as inlet ojien- 

 ings for the admission of air. 



To satisfactorily light and ventilate our fiirm buildings, 

 they must be properly located one to the other. The most 

 desirable form of arrangement consists of a main part, for 

 storage purposes, running east and Avest, with an ell for the 

 animals, the latter connected with the main, running north 

 and south (Fig. 8). This arrangement of the two parts of 

 the stable at right angles provides a warm, well-i)rotected 

 yard, with a southern exposure. It is also advantageous in 

 that the sunlight reaches every part of the stable, while the 

 variation of the inside temperature between midday and 



