AGRICULTURAL ENQINEERING 283 



1 lb.) What is the cost at 3c. per pound? What is the cost of such 

 a fence per rod for wire? 



3. A man can set 50 posts in 10 hours. How long will it take 

 him to set the posts in 80 rods of fence, if posts are 13^ rods apart? 

 What will it cost, if his time is worth 18c. per hour? What is the cost 

 per rod? 



4. Two men and a team (2 horses) can string, stretch and staple 

 80 rods of fence (3 barbed wires) in 5 hours. What will it cost if a 

 man's time is worth 18c. per hour and a horse's time is worth 9c. per 

 hour? What will it cost per rod? 



5. What, then, is the total cost per rod to build a fence as above? 

 (Include posts, setting of posts, wire and stretching of wire, as found 

 in above examples.) 



Exercises: 



1. Each pupil should describe the road from his home to his county 

 seat and tell what he thinks should be done to improve it. 



2. Make a map of a farm, showing directior of flow of water 

 and indicating places that may need drainage. 



3. Make a Hst of every piece of machinery on your farm. State 

 what it cost, what it probably costs a year for repairs and how long 

 it is likely to last. Average the total cost. 



4. Each pupil should describe what he regards as the best bam 

 in the district and tell what particular features commend it. 



5. How many different kinds of silos are in the district and what 

 kinds of silage are stored in them? 



6. Notice the fences you see, in what respects they are good 

 and how also they are poor and might be improved. 



