FORESTKV. 213 



of his wood lot, and how much more would he have made 

 had he sold the cordwood to the furniture maker and the 

 wagon maker ? 



760. A farmer in Xew England planted 60 acres of 

 white pine. The cost of land, of planting, and of expense^ 

 incidental to all the work per acre was as follows : Cost 

 of land, $4 ; cost of seed and growing young trees, $2.42 ; 

 cost of planting. $2.42. What was the cost of 60 acres? 



761. If this money had been placed in a savings bank 

 and had drawn 3 per cent compound interest for 40 years, 

 what would be the total amount of interest? 



762. But this money was invested in a forest instead. 

 What was the total amount invested per acre, including 

 the actual cost and compound interest accumulating dur- 

 ing the 40 years ? 



763. At the end of the 40 years the forest farm yielded 

 40 cords of wood per acre. The wood contained in each 

 cord was valued at $4. What was the value of wood 

 on each acre? 



764. After deducting the initial cost of the forest and 

 interest that might have accumulated at 3 per cent com- 

 pound interest in a savings bank for 40 years, what is the 

 profit for each acre? 



765. What is the average annual profit per acre? 



766. What is the average annual profit for the 60 

 acres? 



767. What is the total profit of the 60 acres at the end 

 of 40 years, after allowing for initial cost and accumu- 

 lated interest? 



768. A European larch grove planted in western Min- 

 nesota 17 vears ago, now contains post material worth 



