IN AN IMPROVED PIT. 65 



and the greater the heat, at commencement 

 especially, the better, in order to dry the walls 

 and the earth within the pit, there being no 

 danger of over-heating by this method ; and if 

 the top heat should be greater than wanted, air 

 proportioned to counteract it may be given. In 

 four or five days the earth will be sufficiently 

 warm for the reception of the plants ; but if 

 they should not be in such a state of forward- 

 ness, as to be fit to turn out, and too large to be 

 accommodated in the rearing-bed, they should 

 be put into the pit for a week or so, before they 

 are removed out of the pots. The linings should 

 be regularly turned and managed as to time, 

 additions, and removals of exhausted portions, 

 as directed for those round common frames (see 

 p. 33) ; commencing at one corner of the pit by 

 taking out as much dung as will allow the ope- 

 ration to be begun ; the lining taken out being 

 removed to the opposite point to fill up, where 

 the turning will terminate, adding fresh mate- 

 rials when necessary, and keeping the whole even 



