258 LESSONS IN AGRICULTURE 



6. Make a list in the notebook of the names of all 

 the trees you can. 



7. Point out the ironwood, blue-beech, hazei, scrub 

 oaks, and other useless "tree weeds" that should be re- 

 moved in improvement cuttings. 



By referring to Roth's First Book of Forestry, or 

 to Pinchot's Primer of Forestry, many valuable lessons 

 may be continued in this work. 



Problems 



1. At $6 per cord, what is the value of a pile of 

 wood 240 feet long, six feet high and four feet wide? 



2. A farmer gets six cords of wood from ten trees. 

 With wood at $5.50 per cord, what is the value of these 

 trees ? 



3. What is the value of a single tree at the same 

 rate? 



4. Suppose there are fifty such trees on an acre, 

 what is the value of the wood on this piece of land? 



5. What is the value of a woodlot of fifteen acres 

 at the same rate? 



6. Suppose a farmer removes the five biggest trees 

 per acre from his woodlot each year. If each tree makes 

 three-fourths of a cord of wood, worth $6 per cord, and 

 it costs 80 cents per cord for cutting, what profit does 

 he make per acre on his woodlot? 



7. Compare this with the profit on an acre of oats. 



8. Compare it with the profit on an acre of corn. 



9. What will the profit on a twelve-acre woodlot 

 be at the same rate? 



