But each log is stamped on both ends, so that it can be sorted out, Fig.

22, and sent into the boom of its owner.
MECHANICAL METHODS IN LUMBERING.
The operations described above are those common in the lumber regions of the northeast and the Lake States.

But special conditions produce special methods.

A very effective device where streams are small is the flume, Fig.23.This is a long wooden trough thru which water is led, and the logs floated end on.

It is sometimes many miles long; in one case in California twenty-five miles.
In the South where there is no snow, logs are largely brought out to the railway or river by being hung under immense two-wheeled trucks, called slip-tongue carts, drawn by mules, Fig.24.The wheels are nearly eight feet in diameter.
[Illustration: Fig.23.Six Mile Flume.