39 



stricture takes place very early ; for I be- 

 lieve it will seldom succeed where the graft 

 is more than one year old ; and as it is bet- 

 ter preventing diseases than curing them, it 

 may be proper to remove the outer bark 

 before atij^f these symptoms appear ; I 

 have accordingly done so to a number of 

 trees, (pear and apple,) of two years old, 

 which have both produced fruit, and grown 

 well to the wood. 



A little time, and further observation, may 

 however determine this question with ma* 

 thematical accuracy, as far as relates to the 

 different kinds of trees % but whatever the 

 exact proportion may be, it will be in an in- 



* I see no impossibility but soil may be applied to 

 this rule. 



