FOEEST-TRAMWAYS. 



345 



required, but the truck simply forms a jjlatform at its surface, 

 and uprights are supplied on both sides to support the wood. 



Fig. 188. 



The transport of logs can evidently be conducted only by means 

 of two trucks, and firewood may also be piled on two trucks over 

 two scantlings placed longitudinally (tig. 186). 



