162 



GARDENING FOR PLEASURE. 



fifty cents per square foot. This is exclusive of heating, 

 which, if done by hot-water pipes, will cost for ten feet 

 wide, about forty cents per square foot of the glass sur- 

 face ; if twenty feet wide, about the same. Thus, to 

 complete a conservatory, with heating apparatus, shelves, 

 etc., ten feet wide by forty feet long, would cost about 



Fig. 50. BASE-BURNER. Fig. 51. SECTION. 



$400 ; if twenty by forty feet, about $700. In this esti- 

 mate it is assumed that' the heating is to be done by 

 the Base-burning Water-heater of Hitchings & Co., 

 or other similar heater. This heating apparatus is of 

 comparatively recent invention, and is exceedingly well 

 adapted for the purpose, as the fire requires no more at- 



