OF PLEASURE GROUNDS. 



351 



ging foundations for walls and houses. All that 

 part of it especially, which consists of vegetable 

 mould, should be carefully conveyed to the spot 

 where it is intended to plant, and where there is at 

 the same time a natural deficiency of soil. This 

 source of improvement, when he is so happy as to 

 possess it, should never be overlooked by the planter. 

 By means of it, he may convert spots, originally in- 

 capable of producing trees of any kind, to fertility 

 in any variety he pleases. Earth brought from a 

 distance should be employed, where circumstances 

 permit, to increase the fertility of land which is not 

 absolutely barren. This ought to be particularly 

 attended to in the case of single trees, which can 

 hardly be called ornamental, unless they can be 

 reared to a respectable size ; and the only certain 

 mode of attaining this, is to give them a more than 

 ordinary depth and strength of soil. Single trees 

 or small groups in a park or pleasure-ground, are 

 most important agents in adorning and improving 

 the landscape, and no pains should be spared in 

 order to bring them on as quickly as possible. 



Even when the land is naturally rich, its produc- 

 tiveness in wood may often be much increased by 

 mixing it with soil of a different quality, brought 

 from a distance. Strong clay ground may be much 



