10 



17. Per cent of receipts from each enterprise for which there is 

 a net plus receipt. (Ignore enterprises having minus incomes, as 

 these are sources of expenditures, not receipts.) 



18. Crop acres per man. (See calculation No. 30 for method of 

 finding number of men.) 



19. Crop acres per workhorse (or mule). 



20. Cost of man labor per crop acre. The cost of man labor here 

 includes the value of hired labor, unpaid family labor, and the 

 labor of the operator. 



21. Monthly wages. To find this, divide the total value of man 

 labor, as determined in the preceding paragraph, by the total 

 months of man labor. 



22. Number of work horses per man. 



23. Value of machinery per crop acre. 



24. Cost of dwelling per crop acre. 



25. Cost of other buildings per crop acre. 



(In surveys including farms on which pasture is very important, 

 the last three calculations should be made on the basis of crop area 

 equivalent instead of crop area. (See No. 55-b.)) 



26. Value of dwelling in terms of net farm income. 



27. Value of other buildings in terms of net farm income. 



28. Value of all labor other than the farmer's. 



29. Value of all labor, including the farmer's. 



30. Number of laborers. This is the total months of labor 

 divided by 12. 



31. Productive work units, both man and horse, on crops. (See 

 Table I.) 



32. Productive work units, both man and horse, on live stock. 

 (See Table I.) 



33. Productive work units, both man and horse, miscellaneous. 

 (See Table I.) 



34. Total productive man-work units. 



35. Total productive horse-work units. 



36. Percentage of productive man- work units on crops. 



37. Percentage of productive man- work units on live stock. 



38. Percentage of productive man- work units on miscellaneous. 



39. Percentage of productive horse-work units on crops. 





