70 



BULLETIN Til, U. S. DEPARTMENT OF AGRICULTURE. 



tail trees or between the second tail tree and the yarder. The pLicing 

 of the trip line several roads distant from that being logged obviates 



Fig. 19. — Trip line head 

 block. 



Fig. 20. — Trip line sidi 

 block. 



frequent change in its position and also keeps it out of the way of 

 the logs as they are hauled in. 



The set-up described above has the main line leading straight from 

 the main drum, through the main-line fairleader (fig. 21), across 



I'll'.. 21. — Main-lino fairloarlcr. 



Fig. 22. — Butt chain load 

 block. 



the landing, and out along the road to the timber. Only a small 

 percentage of the timber can be yarded with the lines leading in this 

 wav. Most of the roads Avill form an angle with an imaginary line 



