TIMBER-SLIDES. 



327 



The slide shown in fig-. 171 is used for logs in the Triftenthal, 

 in N. Tyrol. It is sub-divided above into two branches, and is 



Fig. 171. 





chiefly used for bringing down butts ; its strongLh of constrac- 

 tion may be judged from the plate. 



When sliding logs 30 to 60 feet long, it must be remembered 

 that where the slide is of any considerable length the logs shoot 

 out from it with great velocity, and to considerable distances, 

 Avhich may extend to 200 or 300 feet in the gently inclined fore- 

 ground of the slide (in the Salzkammergut and other places). 



