74 



front of the manger, it is easily swept np, 

 and gives me no concern. 



The ventilators should be large and ar- 

 ranged at the discretion of the builder. 

 But they must be ventilators in fact, and 

 not alone in name. They should have no 

 closing valve, for they should remain open 

 all the time. It should be remembered, 

 however, that to maintain an air current, 

 requires the expenditure of force, and this 

 must be provided for in some way. In 

 winter I find nothing better than an open 

 grate fire in the stable, and in summer I 

 have found that the sun's rays falling on 

 the roof and front of the building can be 

 utilized, and is sufScient to excite a satis- 

 factory current, and is quite inexpensive. 

 This, however, is a matter of mechanical 

 detail. 



