Precautions Against Fire 



141 



than the extra course of brick, and the com- 

 pleted fine is smooth and of uniform dimensions 

 on the inside. 



The openings made in 

 the frame for the chim- 

 ney are often too small, 

 in which case the chim- 

 ney is likely to be " hung" 

 on either the joists or 

 rafters. There should be 

 a clear space between the 

 woodwork and chimney. 

 If the opening in the 

 frame is too small, the 

 mason will be tempted to 

 clip the brick where the 

 chimney passes by the 

 wood and then restore the 

 chimney to its full size 

 when the obstruction is 

 passed. This results in 

 hanging the chimney on 

 some member of the 

 frame. Should the foun- 

 dation settle, the wall may part and sparks may 

 then easily reach the dry wood in the room or 

 at the roof of the house. 



It is believed that the farmer, after reading 

 these lines, may secure a good wall and one 



Fig. 53. 



Chimney standing 



on a bracket. 



