90 



SHADE-TREES IN TOWNS AND CITIES 



trees recover by rapid growth the loss of the shortening of 

 the branches. New shoots begin close to the stem, and the 

 trees form a compact top. If a tree is not cut back suffi 

 ciently when transplanted, if it survives at all, the foliage 

 is thin and borne only on the ends of the branches. Figs. 11, 



\ 





FIG. 11. Young Sugar Maple 

 before tree has been top- 

 pruned. 



FIG. 12. Same Sugar Maple 

 after being top-pruned, 

 preparatory to setting out. 



12, and 13 will suggest about the way in which trees should 

 be top-pruned. Fig. 12 will serve as an example of top- 

 pruning such species as maples, elms, planes, and lindens. 

 Fig. 13 will serve as an illustration for such trees as the 

 oaks, magnolias, and sweet gum. 



How the Tree is Set. The tree is set the same depth it 



