11 



40. Percentage of productive horse- work units on live stock. 



41. Percentage of productive horse- work units on miscellaneous. 



42. Productive work units per man. This is the total productive 

 man- work units divided by the number of laborers as determined 

 in No. 30. 



43. Number of productive horse-work units per horse. 



44. Wages of operator per productive work unit. This is the 

 labor income divided by the productive work units per man. It 

 shows the operator's receipts for each productive work unit done 

 by him. 



45. Labor income per day. This is the labor income divided 

 by 300, it being assumed that there are 300 work days in a year. 



46. Per cent of income on capital, owner farms. First, without 

 deducting value of owner's labor from farm income; second, 

 making this deduction. 



47. For tenant farms, determine the landlord's percentage of 

 income on his investment and the tenant's percentage of income 

 on his investment, if he has any. 



48. Total value of feed produced. 



49. Total value of feed purchased. 



50. Total feed produced and purchased. 



51. Total value of feed crops sold. 



52. Total value of feed fed. This is the sum of the feed pro- 

 duced and purchased, and feed on hand at the beginning of the 

 year, minus feed sold and feed on hand at the end of the year. 



53. Value of feed fed per animal unit, including horses. 



54. Value of feed purchased per animal unit, including horses. 



55. Magnitude of business. A large number of the tabulations 

 which should be made are intended to bring out the relation of 

 magnitude of business to other factors. The magnitude of the 

 farm business may be measured in any one of a number of different 

 ways, depending upon the character of the farms included in the 

 tabulations. Several of these measures of magnitude are discussed 

 in the following paragraphs. The investigator should, after care- 

 ful consideration of the character of his data, determine which of 

 these measures will constitute the most accurate measure of magni- 

 tude of business and at the same time require the least work in 



