tov.] TRENCHING GROUNB*. 547 



curing proper foil for thefe, and for the trees to 

 be planted in the lawn, where the native foil U 

 bad, has already been dwelt upon at length, un- 

 der the title Ornamental Plantations for February 

 (p. 263.) 



TRENCHING GROUNDS. 



In the event of preparing for planting by 

 trenching, it is proper that this work fhould be 

 got forward at this time, in order that the ground 

 may have the benefit of the winter frofls. In the 

 prefent inflance, if the foil be not of a fufficient 

 depth, the fubfoil may be thrown up, even al- 

 though it may be of very inferior quality, till the 

 depth of foil be at lead eighteen or twenty inches ; 

 becaufe, at planting, the roots of the trees will 

 be nearly touching the former furface earth, 

 will thus bt much encouraged. 



