STOCKS. 21 



verely condemned : it will inevitably produce trees 

 disposed to generate suckers, which impoverish the 

 parent tree, and are unsightly and troublesome in 

 grounds ; and if the theory be correct, as I believe 

 it to be, that varieties have their respective periods 

 of duration, after which they languish and decline ; 

 trees raised from suckers will be found to possess 

 the defects of the parent tree, of which they are the 

 offspring. 



