SYSTEMS OF CLEAR-CUTTING 



133 



by a series of strips beginning on one side and pro- 

 gressing across the area until the whole is cleared. 



It is a method which requires a number of separate 

 operations in the same stand. After the first strip is cut, 

 an interval is allowed to elapse until the clearing is 

 restocked by natural reproduction. Then a second strip, 

 bordering on the first, is cut, and this in turn is repro- 

 duced, and then successive other strips are cut at inter- 

 vals until the timber is cut off. 



It is at once obvious that if this method were applied 



in 



I in ii i in 



Fig. 29. Cutting Series. 



to a large block of timber and the strips cut even moder- 

 ately wide, it would take a long period to cover the area, 

 and that a very small yield would be obtained at a single 

 operation. 



Cutting Series. To meet this difficulty, it is cus- 

 tomary to constitute in a single block several cutting series. 

 Instead of beginning at one side and progressing across 

 the area in a single series of strips, the stand is divided 

 into several approximately equal divisions, and a series 



