On the other hand, serious accidents often happen in falling trees.

Most of them come from "side winders," i.e., the falling of smaller trees struck by the felled trees.
After "falling" a tree, the sawyers mark off and saw the trunk into log lengths, Fig.

6, paying due attention to the necessity of avoiding knots, forks, and rotten places, so that some of the logs are eighteen feet, some sixteen feet, some fourteen feet, and some only twelve feet in length.

Meanwhile the swampers trim off the branches, Fig.

7, a job requiring no little skill, in order that the trunk may be shaved close but not gashed.
[Illustration: Fig.7.Trimming off Branches of Spruce.