TIMBER-SLIDES. 



333 



longer the slide and the heavier the pieces to be sent down, 

 the more this must be accentuated. As regards the horizontal 

 plan of a slide, it should be straight or form a steady curve 

 without sharp corners, especially for long logs. 



(e) Collecting-places for Wood.— In high mountainous districts 

 the configuration of the ground ^^ ill not always allow of the construc- 



FiG. 176. 



Scale 4 I-nch r.o IFoot 

 Drawn by T. Marten, I. Forest Survey. 



tion of a continuous slide from the lofty ridges down to the valleys, 

 and several transport-works may be made, such as sledge-roads,, 

 shdes, wire-tramways, &c., according to the nature of the ground 

 in each part. In order to collect the wood coming down from 

 one slide to another lower one a collecting-place may be con- 

 structed. It is barred with stout poles with side palisades, and 

 has an aperture below, into which the expanded upper end of the 

 next section is inserted to receive the wood for the next stage of 

 the descent. 



