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the character of being annual-rooted plants. Of one 

 thing we are certain, that by misapplication, bottom 

 heat has often been the means of depriving them of 

 their roots, not only annually, but almost every time 

 their fermenting bed got renewed ; which sudden 

 checks are the principal cause of their producing 

 such abundance of weak suckers, and such diminutive 

 fruit. To prevent those unnatural checks and disap- 

 pointments, Mr. Barnes plunges the pots they are 

 growing in not more than two-thirds of their depth, 

 with an inverted pot for each plant to stand on (any 

 ill-shaped old pots, or such as have a piece broken 

 out of the side, or are cracked, &c, are always put 

 by for this purpose), the fermenting material being 

 always kept tolerably loose about them. Should the 

 bottom appear likely to heat strongly, merely give the 

 pots a move back and front with a strong stake, which 

 causes them to stand clear, with a cavity in the bark 

 all round them, to allow the heat and air to circulate 

 freely ; and when settled loosen the whole bed up be- 

 tween the pots with a small hand fork, and strong 

 pointed stake for the same purpose. (Gard. Mag.) 



Mr. Knight having so frequently witnessed the 

 difficulties and the folly attendant upon enormous and 

 unnatural bottom heat, was led to repudiate it alto- 

 gether — that is to say, to deny the necessity of using 

 a fermenting or other heating body beneath as a me- 

 dium. Now, be it remembered that Mr. Knight gave 



