WOOD 



53 



The cutting of the trees is usually done in winter, 

 the floating of the logs, or river driving as it is called, 

 beginning with the breaking up of tlie ice in the spring. 

 River driving is a very interesting and dangerous busi- 

 ness. Logs will often get caught sidewise and the whole 

 river from shore to shore become jammed so tightly 



Fig. 65. A Skidway of Adirondack Spruce 



that hundreds of thousands of logs are stopped in their 

 course, forming an immense dam which the lumbermen 

 call a Jog jam- 

 To break up this jam very often requires much labor 

 and great daring on the part of tlie drivers, who wear 



