78 



GENERAL ADVICE 



tation uniform, the pile must be turned occa- 

 sionally, taking care to break up all hard lumps 



81. Portable coldframe. 



and to distribute the hot manure throughout the 

 mass. It is sometimes necessary to turn the pile 

 five or six times before it is finally used, although 

 half this number of turnings is ordinarily suffi- 

 cient. When the pile is steaming uniformly 

 throughout, it is placed in the hotbed, and is 



82. Small coldframe. 



covered with the earth in which the plants are to 

 be grown. 



Hotbed frames are sometimes set on top of the 

 pile of fermenting manure, as shown in Fig. 83. 

 The manure should extend for some distance 

 beyond the edges of the frame; otherwise the 

 frame will become too cold about the outside, and 

 the plants will suffer. It is preferable, however, 



