536 THE NURSERY. 



It will fometimes happen, that part of the 

 nurfery ground which may be damp, fuch as that 

 adapted for Birch and Alder, will be apt to throw- 

 out the young feedling plants. It will be a good 

 means of preventing this, to deepen the alleys 

 between the beds, or to cover them with faw- 

 duft of hard-wood timber. Saw-duft of fir tim- 

 ber contains too much turpentine to be ufed in 

 this cafe with fafety. Indeed, it mould never be 

 allowed to be laid upon ground till it has been 

 feveral years rotted. Tanners bark fhould alib be 

 for feveral years expofed before it be laid on the 

 Nurfery. 



ORNA- 



