ORNAMENTAL PLANTATIONS. 81 



from the nature of the fituation. In many cafes$ 

 it may be neceflary to make an open dram in the 

 middle of the fpace, with crofs outlets as above* 

 In a vaft many old ftripes which we have feen, 

 the trees have become fickly, and have even died 

 out, from the above defect ; although it is of & 

 nature to be guarded againft by a little 

 and a trifling expenfe* 



