FOREST-TRAMWAYS. 337 



(35'2 Ibs.) directly on the road. The rails were screwed 

 together every 1 to 1J meters by tension rods and joined 

 longitudinally by strong lappets.* 



As regards the gauge, experience shows that for main lines 

 70 centimeters (27 inches), and for portable portions 60 centi- 

 meters (23 inches), are most suitable.! Junctions on the main 

 lines are effected by a combination known as switch and points, 

 a description of which may be seen in Dempsey's Practical 

 Railway Engineer, but on the portable lines a junction is 

 effected more easily by means of a curved section placed over 

 the rails, as in Fig. 212. 



[Brandis states that at Kottenforst, wooden sleepers are 



L'Ki. Truck for logs. 



preferred even for the portable portion of the railway as not 

 liable to bend on uneven ground. Two kilometers (1 J miles) 

 of branch- railway may be laid by two men in a day. With 

 two wooden sleepers, one at each end, a section weighs 38 kilos 

 = 84 Ibs., but the rails must be heavier than when more 

 sleepers are used, 8 kilos per meter. Tr.] 



The main lines might be constructed in similar fashion to 

 the portable lines, but in their case the rails are 5 6 meters 

 long, instead of only 2 meters, and the sleepers 80 centimeters 



iii, \'c lieu-bare Bahncu ohm: Schwellen, All;.:. Ft. u. Jd. Zeituug, 

 -ilso 1902, 



f [So (layer, but change of gauge is of doubtful efficacy. Tr.] 

 F.U. Z 



