316 



WOOD TRANSPORT BY LAND. 



where the wood which has been collected lies scattered over a 

 large area. A horse carries only 2 cwt., while it can drag 7 to 



9 cwt. At the same time, 

 pack-ani m als require 

 only bridle-paths, which 

 can be constructed and 

 kept in repair much 

 more easily and cheaply 

 than cart-roads. 



[In the Himalayas 

 the transport of firewood 

 is carried on extensively 



Fig. 192. Carriage of boxwood by mules. 



by means of pack-mules 

 and ponies, in billets 

 3 feet long, and the cost of conveyance is 1 rupee 6 annas 

 per 100 stacked cubic feet per mile for oakwood, and 1 rupee 

 2 annas for fir (Fig. 192). Tr.] 



SECTION II. TIMBER-SLIDES. 



A. CONSTRUCTION. 



A timber-slide is a more or less permanent channel, either 

 constructed of wood or excavated in the ground, and placed 

 along a mountain slope; the wood descends by its own 

 weight. Slides may be distinguished as wooden slides, ground 

 slides, or roads used for sliding timber. 



1. Wooden Slides. 



Wooden slides may be constructed either of butts or poles, 

 or of planks. 



(a) Log or Pole Slides. These are semi-circular channels, 

 made of closely-packed poles, or logs, 4 to 12 inches thick, and 

 are used for timber transport. The pieces of timber used in 

 constructing ordinary slides of this kind should be 10 to 2(> 

 feet long, and the separate sections of which the slide is made 

 are the same length as the pieces. The length of a slide 

 is thus frequently described by the number of sections it 

 contains. The channel lias a width of 2.J to 5 foot ; it rests 



