20 LESSONS IN AGRICULTURE 



2. How many feet of inch lumber will be needed 

 to board up the gables of a barn thirty feet wide, the 

 peaks being twelve feet above the eaves? 



3. How much lumber will it take to cover a corn 

 crib with four-inch slats, placed one inch apart, the 

 crib being twenty-four feet long, six feet wide at the 

 bottom, eight feet at the top, eight feet to the eaves, 

 and the peak three feet above the eaves? 



4. How long will the rafters need to be for this 

 crib if they are to project one foot? How many feet 

 of 2x4 rafters will be required if they are placed two 

 feet apart? 



5. How many feet of 2x4 studding will be needed 

 if they are placed the same distance apart ? How many 

 feet of roof boards will be required if they are allowed 

 to project one foot at each end? 



6. How many cubic feet must a bin contain in order 

 to hold a thousand bushels? Make a list of convenient 

 dimensions for such a bin. 



7. How many feet of two-inch plank will be re- 

 quired to build a cylindrical tank fourteen feet across 

 and two feet deep? What will be the cost of the liimlM-r 

 at $30 per thousand? 



8. How many feet of band iron will it require to 

 make three hoops for this tank? 



9. How many feet of inch lumber will be required 

 to cover the inner wall of a "round" silo twenty-one 

 feet across and eighteen feet high? How many feet 

 of two-inch plank will be needed for a cover? What 

 will be the cost of all this lumber at $25 per thousand. 



