THE PRINCIPLES OF PLANTING 



65 



to pegs driven firmly into the ground at the three points of a triangle 

 will serve the purpose. To prevent the wires from injuring the tree 

 they should pass through pieces of rubber hose wherever they touch it. 



PLANTING WITH DYNAMITE 



When a large number of trees are to be planted, or when the sub- 

 soil is very hard, the holes are sometimes blasted with dynamite (Fig. 

 69). If this is done, care must be taken that the hole made (which is 

 generally deeper than is necessary) is filled firmly up to the height at 

 which the tree is to be planted. If this is not done the soil will settle 

 much more than if the hole were dug by hand, and the tree will be left 

 too deep and will not thrive. 



TRANSPLANTING WILD TREES 



Before moving a tree from the woods, it is advisable to root-prune 

 it as directed under "Root-pruning" (page 70). This should be done 

 in early Spring; then, after the trench is filled with good soil, the tree 

 should be allowed to stand until the following Autumn or, better still, 

 the next Spring. It can then be moved with less root injury. If it is 

 taken out in Winter, it can be handled with a frozen ball of earth and 



Fig. 64. Diagrammatic examples of tree grouping. (A) is decidedly poor, both because 

 it uses three specimens of the same size, shape and type in a symmetrical group, and 

 because this arrangement detracts from the real beauty of any one of them. (B) is better, 

 and (C) better still, both of these having variety in height, mass, sky line and perspective 



