FOREST TREES 
green, and vary considerably in out- 
line. When in full leaf, the outward 
form of the tree is striking in appear- 
ance, its foliage being massed into 
rounded and hemispherical shapes that 
group themselves in the crown of the 
tree in well-proportioned and tasteful 
outlines. 
The birches, too, are very attractive 
trees, especially where they have ample 
room to develop. The white birch ap- 
pears at its best where it is sprinkled 
in moderation among open groves of 
other trees. To the forester it is of 
some importance, as its seedlings rap- 
idly cover denuded or burnt areas. 
They also shield from excessive sun- 
light or from frost the seedlings of 
more valuable kinds that may have 
sprouted in their welcome shade; until, 
19 
