314 



sarily for evcry-day use, but in the event of fire or any 

 occasional emergency that may arise. They should 

 be seven feet high and four feet eight inches wide, and 

 should have hinges near the centre in order to fold 



Fig. 46. — Folding Door. 

 F F, Folding Hinge ; D D, Division of Halves. 



round the corner of the wall, while they should be 

 hung at two lengths both for convenience and ventila- 

 tion (Fig. 46.) It is very important that doors should 

 be wide, so that horses can pass through them quite 

 freely. 



