554 Of Chimney Fireplaces. 



PLATE XII. 

 FIG. 10. 



This figure shows how the covings are to be placed 

 when the front of the covings (a and b] do not come so 

 far forward as the front of the opening of the fireplace, 

 or the jambs (A and B). See page 528. 



FIG. ii. 



This figure shows how the width and obliquity of the 

 covings are to be accommodated to the width of the back 



o 



of a fireplace, in cases where it is necessary to make the 

 back very wide. See page 529. 



