28 GREENHOUSES 



by snow or ice falling from the roof. A pit 

 may be attached to the south side of a dwell- 

 ing and connected with the basement. When 

 the house is heated by a furnace this may be 

 easily heated with little expense, and be used 

 for growing vegetables or flowers through- 

 out the winter. 



Fig. 13. Sash-bed attached to basement of dwelling 



