174 FARM ARITHMETIC. 



614. How many feet (B. M.) in the following bili 

 rough timber? 



300 lineal feet bridging, 1 in. x 2 in., 

 1,440 square feet loft boards, and 

 2,000 square feet roof boards. 



615. At $28 per M, how much did this lumber cost ? 



Building a Barn. 



For the barn shown in the cut on page 173 the follow- 

 ing bill of materials is required : 

 Heavy timbers : 



616. How many feet (B. M.) does this part of the 

 bill of materials include? 



617. At $30 per M how much did this lumber cost? 



618. There were 16 000 shingles for the roof at $4.75 

 per M ; 100 pounds of 60d spikes, 100 pounds 40d spikes, 

 300 pounds 20d spikes, 100 pounds 8d nails, 70 pounds 

 4d nails, all of which are purchased at a cost of 5 cents 

 per pound. What will these materials cost ? 



619. There were also used two tracks 20 feet long at 

 10 cents per foot ; two pair hangers at 75 cents each ; eight 

 pair coop hinges at 50 cents each ; eight windows. 



