222 



STATE BOARD OF AGRICULTURE. 



The tractor operator was asked his repair costs for the hist year ouly. 

 These were grouped into systems. Two hundred forty-eight tractor op- 

 erators answered the question on cost of repairs. The following table 

 shows the increase in the cost of repairs for the first four years. It will 

 be seen that the cost of repairs tends to increase each year. The last 

 column shows the number of hours the operator spent on repair work. 

 The costs included the expert labor for the different years. 



REPAIR COSTS ON TRACTORS FOR DIFFERENT YEARS. 



FUEL AND GREASE COSTS PER DAY. 



The following table is a summary of the cost of keeping 245 horses on 

 46 farms in Jackson, Shiawassee and Lenawee counties for the year end- 

 ing March 31, 1922. The prices are figured at local market price each 

 month. 



AVERAGE DIRECT COST^ON 1_H0RSE FOR 1 YEAR— 1921-1922. 



The following are average money yield, direct costs, and net returns 

 on 254 cows on 23 farms in Jackson and Shiawassee counties for the 

 twelve months ending March 31, 1922. The data was gathered by O. E. 

 Dunckel on the general farming route: 



