52 



About the beginning, or middle of May at 

 farthest, I would advise the omission of fires 

 entirely ; as the natural heat of the season uni- 

 ted to that of the bark-bed, will in general be 

 found sufficient to keep the mercury up to the 

 above mentioned point. 



Towards the latter end of June, the plants 

 by this treatment will generally be in a very 

 luxuriant free state of growth ; it will be there- 

 fore requisite, to raise the pots quite out of 

 the tan-bed, to check and harden them a little, 

 so as to be able to bear the air of the green- 

 house for a few weeks, which will be of consi- 

 derable advantage to them the ensuing winter. 



Should any of them remain of a sickly ap- 

 pearance, (and that a few may be in that state, 

 in large collections must be reasonably expec- 

 ted;) or any particular tender sorts among 

 them, they must be removed to a separate 

 house as already hinted, where the tan being 

 previously forked up, and otherwise properly 

 prepared for their reception, they must be im- 

 mediately replunged : if no such house is con- 

 venient, a large deep hot bed frame, set on a 

 good bed of well prepared dung, will answer 

 nearly as well for this purpose ; having nine or 



