suited to each condition.

BRUSH PILING

In the more open pine stands of the interior, where both logging
debris and original combustible ground cover are small, slashings
threaten the adjacent timber less than in denser forests, but are
of peculiar danger to the valuable young growth usually left on
the area itself. As we have seen in a previous chapter on western
yellow pine, reproduction in dry localities may require scattering
the brush over the ground and keeping fire out, and there may be
abnormally dense stands suggesting clean slash burning, but as a
rule brush piling is the best course. In view of the importance
of this subject the following extracts are taken from a circular
issued by the Forest Service:

"_Advantages of Brush Burning_

"The greatest advantage of brush burning is the protection it gives
against fire. In many cases brush burning is the only practicable
safeguard against fire. After the average lumbering operation the
ground is covered with slash, scattered about or piled, just as
the swampers have left it. This, in the dry season, is a veritable
fire trap. Probably 90 per cent of all uncontrolled cuttings are
burnt over, which retards the second crop at least from fifty to
one hundred years and perhaps permanently changes the composition
of the forest. Fires may be set by loggers while still at work
on the area or several years after by lightning, campers, or
locomotives. By piling the brush and burning it in wet weather,
or in snow, when there is no danger of the fire spreading, all