GAVIN CREE'S SYSTEM OF PRUNING. 265 



to every part of the tree in the form of cambium ; but 

 they evidently exercise a very powerful influence by 

 attracting sap and nourishment from the soil through 

 the roots, which every other part of the tree benefits 

 by in its general upbuilding : and this is carried on 

 just in proportion to the number, health, and condition 

 of the branches upon the tree. 



Mr Cree speaks of the advantage of the foliage of a 

 pruned tree remaining longer green in autumn than 

 that of one not pruned. This is quite an error, for 

 the sooner the better a tree matures its growth and 

 defoliates its leaves ; and if it does not do so before 

 frost overtakes it, the results to the young shoots, as 

 any one knows, are quite disastrous, and which are 

 but too often the subject of lament. 



