I $6 Forestry Qiiarterly, 



The free use policy (very important) should be discussed as 

 shown under timber sale policy. 



There should be a discussion of yield based on timber sale and 

 free use policy (above) and the fixing of the annual or periodic 

 yield. According to this, yield regulation must be subordinated 

 to silvicultural requirements and to market. It is clearly valueless 

 to impose a limitation of cut, which is impractical, because of the 

 necessity of a large annual cut to justify commercial logging. At 

 least until the over-mature timber is removed the policy of a sus- 

 tained annual yield need not be applied. Even a periodic sus- 

 tained yield need not be attempted until it is clearly and posi- 

 tively necessary for reasons of public policy. In other words, it is 

 unnecessary to pursue an academic ideal of sustained annual yield. 



In the discussion of the yield problem, however, it will be ad- 

 visable to check the practical requirements with an academic 

 estimate of the yield capacity by formula, volume, area or such 

 other theoretical checks as can be applied. This will necessitate 

 a short discussion on rotation, which will be based on the class 

 of material which it is desired to produce and not upon financial 

 or volume returns'. 



Distribution of yield should also be discussed, i. e., areas cor- 

 responding to logging units which should be cut in order of im- 

 portance. The discussion, while it should be practical, should 

 consider these areas both from a silvicultural and market stand- 

 point. 



The plan will really constitute in itself a concession that policy 

 and silviculture must overtop regulation. 



It is not intended that the outline for a preliminary plan should 

 be rigidly followed. It is given merely as a suggestion of the 

 kind of material to be included in the plan. The writer wishes 

 to convey the idea that preliminary plans- should be practical and 

 for short periods; that they should be as brief as possible yet 

 omit no essential details; that they should be based on actual 

 local conditions; that they should contain more policy and less 

 theoretical regulation of yield than in the past, and that although 

 the conclusions should be based on silvical facts, these facts need 

 only be referred to and need not be a part of the plan. 



6. Final Plans. It is believed that the time is not yet ripe for 

 final plans. As far as the writer is aware, no practical prelimin- 



