8 



FARMERS * BULLETIN 810. 



inlets near the floor line. Some attention is required to adjust such 

 inlets to the variations in wind and temperature, and the same is 

 true where windows are depended upon. There is no efficient auto- 

 matic system of ventilating sheep buildings. 



FLOORS. 



Level and well-drained clay-surfaced floors are satisfactory and 

 economical. Sheep pack the surface very firmly, and if there is 

 proper drainage the only objection to this floor is that it does not 

 exclude rats. Concrete floors for alleys and feed rooms are neces- 

 sary, but will seldom be called for in the pens. 



&r'cf- 



^ \ 

 FIG. 6. Floor plan of barn shown in figure 5. 



