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this, a layer of the coarsest siftings of the peat, 

 about six or eight inches thick, to prevent the 

 finer mould filling up the interstices in the 

 under stratum. This done, prepare a quantity 

 sufficient to fill up the remainder, of loam, and 

 peat ; they must be well mixed together and 

 chopped rather fine, about equal quantities of 

 each is a good proportion, and if about one- 

 fifth of fine sand were added, it would benefit 

 the compost materially. The whole should be 

 cast up in a heap, so that any large lumps or 

 tuffs of roots may be the more easily raked off, 

 which is all the preparation it requires. 



It will be shown in the latter part of this 

 work, what is meant by the different descrip- 

 tions of soil here mentioned, the situations in 

 which they are most likely to be met with, and 

 how to be chosen. 



The mould being prepared as above, pro- 

 ceed to fill up the pit with it, and observe to 

 raise it considerably above the kirbs of the pit 

 to allow for its sinking ; also to make it as level 

 as possible, that it may settle the more regular. 

 There will likewise be a number of smaller 

 detached places to be filled, which are intended 

 for the reception of the different climbers ; such 



