78 



PRACTICAL FLORICULTURE. 



arose, it requiring nearly the same attention as the more 

 expensive boiler. Occasionally these conservatories are 

 heated by registers from the furnace heater, just as the 

 ordinary rooms of the dwelling; but I have rarely seen 

 any so heated wherein the plants looked well, it being 

 ditficult to get the register so placed" as to diffuse the heat 



UJ 



Fig. 34. SECTION OF HOUSE ASD COXSERVATOBT. 



evenly. A new base-burning water-heater has been 

 invented by Hitchings & Co., the well known green- 

 house-heating firm. There is nothing new in the princi- 

 ple, nothing to patent, I believe. It is simply making the 

 ordinary base-burning stove heat water so that it will 

 circulate in iron pipes and warm a small green-house or 



