THE FORCING GARDENER. [fi. I. 



pradifed, thefe will be found to be incon- 

 fiderable -, and, as the plants require fre- 

 quent fhifting, the flirring up of the* bark- 

 bed at that time is a trifling trouble, and 

 fometimes the addition of k new tan is un- 

 necefTary. 



I am convinced there is no ingredient 

 can be fubftituted for tan, that will equal- 

 ly anfwer the purpofe in the Pinery ; and 

 therefore would recommend the ufe of it, 

 in preference to all others, where it can 

 be procured on reafonable terms : but 

 lefs or more of it is indifpenfably necef- 

 fary. 



Oak-leaves are Certainly the next befl 

 material ; but they are not to be had in 

 many places. Where they are ufed, I 

 would advife that at leaft eighteen inches 

 of well- reduced tan be laid on the fur- 

 face, wherein to plunge the pots. 



A mixture of ftable-dung and tree-leaves 

 of any kind, is the next beft ingredient. 

 But thefe Ihould be well fermented be- 

 fore they are ufed, and at leaft two feet 

 of reduced tan fhould be l^id on the fur- 

 face. 



Some 



