Some Permanent Sample Plot Studies 127 



1. The amount and present value of the standing 

 timber per unit area which would have been taken out in 

 an unregulated logging operation. 



2. The amount and the present value per unit area 

 left in the woods by the unregulated logging operation 

 which would have been utilized in a Government timber 

 sale. 



3. The amount and the future value of the second 

 crop that is expected to be cut in thirty years. 



4. The return per cent, calculated at compound in- 

 terest, on the present investment represented by the value 

 of the anticipated second cut. 



Ii. this study the taxes and cost of protection for thirty 

 years will be considered as annual expenses. The cost of 

 marking- and brush disposal on the timber sale together with 

 the added cost of 1 ogging on Government land, because all of 

 the trees are not removed, will be considered as initial ex- 

 penses in making the financial calculations involved in the 

 study. These calculations will show the profit or loss at the 

 end of thirty years as a result of conservative cutting. 



