104 



PRACTICAL FLORICULTURE. 



more expensive boiler. Occasionally these conservatories 

 are heated by registers from the furnace heater, just as 

 are the ordinary rooms of the dwelling ; but I have rarely 

 seen any so heated wherein the plants looked well, it being 

 difficult to get the registers so placed as to diffuse the heat 

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



Fig. 38. SECTION OF HOUSE AND CONSERVATORY. 



vented by Hitchings & Co., the well known greenhouse- 

 heating firm. There is nothing new in the principle-- 

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

 ordinary base-burning stove to so heat water that it will 

 circulate in iron pipes and warm a small greenhouse o* 

 conservatory attached to a dwelling or otherwise, exactly 



