354 ELEMENTS OF FARM PRACTICE 



puchaser will preserve these directions sent with the ma- 

 chine, study them carefully and follow them very closely. 

 It will also pay to get one or two good books on automobiles, 

 tractors, etc., so that details of operation and care may be 

 learned. 



Questions: 



1. Tell all you can about the care of farm machinery. 



2. What are some of the points to consider in the purchase of 

 a machine? 



3. Name some of the sources of information for knowing how 

 to properly operate machinery. 



Arithmetic: 



1. If a gas tractor worth $1,400 depreciates at the rate of 15% 

 per year and a fair interest rate is 6%, what will be the amount of 

 these two items for one year? 



2. If the total cost of owning and operating a gas tractor for 

 one year is $600, what will be the cost per day, if it is operated 45 

 days during the year? 



3. If it costs 10c per mile to run an automobile, what will be 

 the cost per year if it is run 3,700 miles? 



Exercises: 



1. Make a list of all the different kinds of farm machinery on 

 your father's farm. 



2. Make a list of all the different kinds of farm machinery that 

 you know about in your neighborhood. 



3. If there is a new kind of machine in the neighborhood be 

 sure to see it in operation. Ask the owner what the good and bad 

 points of his machine are. 



4. Find out how many wind mills there are in your school dis- 

 trict and ask whether or not they are satisfactory. 



5. Find out how many tractors and auto trucks are in use in 

 your neighborhood, ask about them and report to your teacher or 

 your father. 



6. If there is an individual farm electric lighting plant in j^our 

 neighborhood, visit the plant and find out all you can about it. 



7. Examine carefully the most important pice of machinery 

 and learn the name of all the different partS: 



