CHAPTER II 

 SASH-BED CONSTRUCTION 



HOTBEDS 



As stated in the preceding chapter, hot- 

 beds are low structures almost wholly under- 



Fig. 1. Hotbed in operation 



ground, but having a glass roof made up of 

 sash. They are usually heated by ferment- 

 ing horse manure placed in the bottom, but 

 may be heated by brick or tile flues, or by 

 steam or hot water. Their chief commercial 

 use in for the starting of early vegetable and 

 flowering plants. In the home garden they 

 may be used for growing to maturity in early 

 spring or late autumn, such semi-hardy and 



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