TIMBER-SLIDES. 



337 



wliicb the downward section begins, and the log, after striking 

 against the barrier, rolls into the lower section {m, u), and con- 

 tinues its descent as shown in fig. 178. 



[A similar turning was ettected in a fuel sledge-road near Chakrata, 

 X. W. Himalayas, by using a large cart-wheel set on a pivot as a 

 turn-table, on which the direction of the sledges was changed. — Tr.] 



The upper end of a slide is generally somewhere near the 

 felling-area. Its lower end should lead to a plot of land sufficiently 

 spacious for the material brought down to be collected and sorted. 



Fig. 178. 



In order to manage this better the slide may be divided below 

 into several branches. In any case, it should terminate above a 

 cart-road or a stream used for floating. 



Once the logs which are to be transported are brought by any 

 means whatever to the head of the slide, they are used to fix its 

 sides, commencing at the top ; being placed along the outer 

 sides, or on both sides, of the roadway, supported by pegs 

 either through the logs or outside them, and at such a distance 

 apart as to allow for the easy passage of a sliding log between 

 them (see fig. 177). In order to prevent descending logs from 

 jamming, the distance apart of the boundary logs should be 

 greater on curves than on straight sections of the slide, or the 

 inner side of the slide may be left free. On the outside of 

 curves it may also be necessary to put two or three boundary 

 logs one above the other, in order to prevent the sliding logs 

 from leaving the slide. In mountain-regions transport on 

 road-slides deserves more attention than has hitherto been 



VOL. V. z 



