12 HOUSE PLANTS 



" The labour included cutting the glass and 

 placing it in the frames where it was needed.'* 



THE HEATING PROBLEM 



Perhaps, after all, the greatest stumbling- 

 block in window gardening lies in the matter 

 of heating. Very naturally one wants to 

 have, as the fruits of this hobby, plants in 

 flower during the winter season. The most 

 ingenious method I ever heard of was the 

 construction of a miniature gas furnace 

 in the cellar to heat a portable window 

 extension box, and it was by no means 

 expensive. The scheme was evolved out 

 of the desire to force bulbs; it came as an 

 inspiration one October day when overhaul- 

 ing the storm windows preparatory for 

 winter. Two tall, narrow ones which had 

 been made useless by remodeling the sitting- 

 room suggested the thought that here was 

 a start toward the little conservatory. They 

 were of exactly the same height as the storm 

 sash of the south dining-room window. 

 Here, then, were three sides of a window 

 greenhouse; moreover, they exactly fitted 

 each other and the window. 



By means of four long screws on a side, 



