EVERGREEN TREES. 169 
dulous, scales thin, not pointed, open early in fall or win- 
ter, the seeds soon falling; tree of great size, sometimes 
one hundred and seventy feet high, very 
straight. This tree furnishes the immense 
quantities of white-pine lumber so well 
known throughout the country. It is a 
handsome ornamental tree of rapid growth. 
The young trees as they are generally 
found in the forests have comparatively 
few branches, and the tree is not dense 
enough to be handsome, but can be made 
so by severely shortening all the leading 
shoots. 
In some sections of the country the young 
trees are infested with a species of bark- 
louse (coccus) ; it is covered with a white 
downy substance, which makes it quite con- 
spicuous and readily detected as it-fastens 
upon the stem and branches. A strong 
solution of whale-oil soap, or one pound 
of potash to six quarts of water, applied to the infested 
parts will usually destroy them. A very convenient remedy, 
where only the stem and larger branches are infested, is a 
piece of common hard soap fastened in the branches above 
the insects; every rain will dissolve a portion of this, which 
is carried down and over the insects. The young lice 
when first hatched are so delicate that the least particle 
of soap kills them, and they can neither live nor multiply 
on bark that is washed every rain with a solution of soap. 
There are a great number of species of this genus which 
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