1886.] 071 the Frind])les of Domestic Fireplace Construction. 351 



Rule XI. " The chamber lender the fire should he closed hj a 

 shield or ' Economiser ' " (G, Figs. 1 and 3). — This has been ah-eady 

 spoken of, and described as the central principle which enhances 

 greatly the value of all the rest. 



Fig. 3. 



\ Z 3 k. s i f q^ 



INCHES 

 Front View of Fireplace. 



^ Rule XII. " Whenever a fireplace is constructed on these 

 principles, it must he home in mind that a greater body of heat is 

 Vol. XI. (No. 80.) * 2 a 



