264 
LOGGING 
tened together by a lap joint pierced with a 2-iiich wooden pin, 
or with a |-inch iron spike. The joint may or may not be sup- 
ported on a cross-skid. Fender skids are kept in place by stakes 
driven into the ground on the outer side. Slides of this character 
Fig. 86. — A Trailing Two-jxilc Loj; Slide in process of construction. Idaho. 
are desirable on side-hills, where there is a tendency for the logs 
to leave an earth trail. 
Timber Slide. — A timber slide has a trough or chute made 
of round or sawed timbers supported on cross-skids. On low 
grades where logs will not run by gravity it is necessary to clear 
out a right-of-way 10 or 12 feet wide which serves both for the 
slide and as a pathway for the animals which draw the tow of 
logs. Where the grade is sufficient to cause the logs to run by 
gravity, a right-of-way 8 feet wide is ample. 
