Barn Construction. 



12' 



through. As usually constructed, the manure, un- 

 less thin, lodges on the bars. Cast-iron gratings 

 are recommended, not to exceed one-half inch in 

 thickness by one inch and a half in depth (the narrow 



r^ 



T 



M^2 



SecMorv . 



CokSt Iron Grcitirve: . 



1 1 III! II n II f 



Secdorvof Drop. 

 /6"x le" 



