TIMBER SLIDES AND CHUTES 273 
transported. A radius less than 200 feet is not desirable for 
any form of slide. 
OPERATION 
Running slides are more expensive to operate than trailing 
ones because of their higher construction and maintenance ex- 
pense, and the added cost of returning to the slide the logs which 
have jumped out of it. 
Logs usually are rolled directly into slides either from large 
skidways on which many logs are stored in advance of chuting, 
or from small skidways where the logs are sent down as they 
are yarded. In some cases skidways are dispensed with, the 
timbers being spread apart at the head of the slide and the logs 
dragged directly into it. 
Logs are sent down singly on running slides. When a part 
or all of the slide is a trailing one from ten to forty logs are made 
up into a turn, but if there is 
a possibility of the logs run- / ^ ^1 ^^^^^^^"'^^ 
ning even for a short distance 
they are not fastened together. 
In making up a turn on a 
trailing slide a log is rolled 
from the skid way into the 
/ 
slide, and is then hauled down Fig. 93. -An "L" Hook used for 
a log length by a tow horse or attaching the Tow Line to the 
team, so that the next log may Turn of Logs, 
be rolled in. Both are then 
moved ahead for another log length by attaching the tow 
line to the rear of the last log. The process is repeated until 
a turn is made up. The team is then hitched to a chain or rope 
from 30 to 50 feet long, at the end of which is an " L" hook, 
swamp hook, grab hook or ''jay grab." The hook is then attached 
to the last log and the tow is started for the landing, and if the logs 
begin to run in the slide it may be readily detached. The logs 
are dragged to the landing, or until the grade becomes sufficient 
for them to run, whereupon the tow is started down the slide 
and the team returns to the head for more logs. The tow is 
picked up by another team on the first "dead" stretch and dragged 
to the next running portion of the slide. 
Caterpillar tractor draft has been substituted successfully 
