ON COMMON DUNG BEDS. 35 



bed, the plants may be lost in the interval 

 between the turning and re-rising of the heat. 

 During the operation of turning, should there 

 appear any part too much decayed, let it be 

 removed, and its place filled with fresh linings, 

 which should be put on the top of the old, in 

 order to draw up the heat from it, and to keep 

 up a good warmth round the frame ; besides, 

 when the new linings are above the bed, there 

 will be no danger of their rank steam getting to 

 the plants. When the linings are again turned, 

 the fresh manure applied, must continue at the 

 top ; and, if necessary, some more must be added 

 to it, in order that the right height may be 

 preserved. It must, however, be observed that 

 the new linings should never be allowed to mix 

 with the old ones until they have become quite 

 sweet ; for you must, on no account, allow 

 rancid heat to be confined at the bottom of 

 your linings. Attention to these directions 

 must be continued until June, if it is desired to 

 keep the plants in a healthy state ; and although 



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