CONSERVATIVE LUMBEKING. 



49 



TRANSPORTATION. 



After the f^kidding, tlie log.s may ])e transported to 

 the sawmill in manv different wavs. Sometimes thev 

 are loaded on sleds and 

 drawn over carefully made 

 ice roads to a logging- rail- 

 road or to the bank of a 

 stream. When the stream is 

 not swift or deep enough to 

 carr}^ the logs of itself, splash 

 dams are built, in which 

 great quantities of water are 

 held back for a time. (See 

 PI. XV.) When such a dam is opened the water is set 

 free, and great niuiibers of logs may be driven far down 



Fig. 32. — Logging white cedar by 

 team. New Jersey. 



Fig. 33.— Logging by raiL Sierra Nevada Mountains, California. 



the stream by the sudden flood. In larger streams the 

 logs are sometimes made into rafts, or they may be 



