20 FORKST REGULATION 



5) Detail Cutting Plan for the years 1914-1923. 



WORKING SECTION II, BEECH, ROTATION 120 YEARS. 



Etc., etc., etc. 



This is a most important table ; it tells the forester exactly what 

 to do, where to cut, etc. 



A table, practically like the foregoing is prepared for the Plan 

 of Thinning to be done during the next 10 years. 



6) The Selection Forest receives its own Plan. This is usually 

 a simple area table which directs that each year about 1/15 part of 

 the area is cut over. Since the timber is not all cut at any one time 

 there is need for setting some volume as the amount to take per 

 acre. Since the "Return" here is every 15 years, the cut should 

 take about 15 years growth each time going over the forest. If 

 an acre is estimated to produce 75 cu. ft. per year, then the cut, 

 each time, should take about I5X75-" I O 2 5 cu. ft. per acre of 

 forest actually cut over. This plan appears about as follows : 



Working Section No. Ill, Selection, Rotation about 150 y. ; 

 Diam. of ripe Beech 16"; Spruce 14"; Balsam 16" '. 



Average Growth per acre estimated at 75 cu. ft. per acre. 



Cut, therefore, takes about 1000 cu. ft. per acre, at each Return. 



Diameter limit merely a criterion in thrifty good timber, i. e., 

 no good Beech cut under 16" except in thinning. 



