By Thomas Andrew Knight, Esq. 257 



the next spring, but I entertain very little doubt that such 

 will be then seen in great profusion, and I look forward with 

 strong hopes to a crop of fruit. Should these hopes be real- 

 ized, it will not, I conceive, be improbable, that many other 

 fruit-bearing trees, which now produce flowers only in our 

 stoves, may be made to afford fruit by attention to the fore- 

 going circumstances. 



I have not at present an opportunity of subjecting a 

 Mango tree to the above described mode of treatment ; but 

 I feel confident that it would be successful, and I scarcely 

 entertain a doubt respecting the source whence the trees of 

 the Earl of Powis derived their luxuriant health, and capa- 

 bility of affording their abundant and excellent produce. 

 Possibly the health of many plants of difficult culture might 

 be preserved by placing their pots within larger pots, and 

 filling the intervals with earth. Those species of Heath, 

 which are frequently seen to die suddenly without appa- 

 rent cause, appear to be very proper subjects for such an 

 experiment. 



Whenever I have adopted the practice of plunging the 

 pots into the ground, or into the soil of a larger pit, I have 

 almost invariably used pots without any apertures, to prevent 

 the escape of water, and of the roots. Gardeners are gene- 

 rally very strongly prejudiced against pots of this construc- 

 tion ; but whenever plants are kept constantly under glass, I 

 have found that they may be used with advantage ; and by 

 properly covering the mould with tiles, I have not found 

 any difficulty in preventing, during summer, the ingress of 

 too much water, when the pots have been placed in the 

 open air. 



YOL. VII. L 1 



