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niaj usually be obtained by thinning the 

 summit of the leader. If we want a tree 

 to grow particularly open, and picturesque^ 

 it is easily effected by displacing all, ex- 

 cept a small number of the largest 

 branches. 



If we want a tree to exhibit two distinct 

 heads, (the one above the other), it is 

 done by leaving some branches upon the 

 stem, at any required height; and then 

 clearino* it so hio;h as where we wish the 

 others to spring. But in doing this one 

 caution is necessary ; never let the lower 

 set of branches invest the stem closely in 

 any one place ; as in that case, if a dead 

 top were not ultimately the consequence, 

 the higher tier would grow much slower 

 than that below it. The safe rule is, 

 never to retain more than three for the 

 latter purpose, which stand at or near 

 equal heights ; the whole quantity should, 

 of course, be in some degree proportion- 

 ed to what may be supposed will be the 



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