300 



THE BOOK OF CORN 



of the crop to $651.25 and the cost per bushel to 

 26.2 cents. 



Record on a Nebraska Farm — One of the most 

 valuable collections of data relative to cost of pro- 

 duction in a given locality of which the writer has 

 knowledge, is found in the annual records kept by Mr 

 R. M. Allen, manager of the Standard Cattle Com- 

 pany, for the farms of the home feeding station at 



Fig 85— Corn Root Aphis 



Male and oviparous female enlarged (after Forbes) 



Ames, Nebraska. These crops have been grown on 

 different kinds of soil, from sandy to very heavy, 

 sticky, black gumbo in the Platte river valley. The 

 record as presented below covers a ten-year period, 

 thus including both good and bad seasons. Farming on 

 this place is carried on as an exact business and the 

 figures presented are exact records as drawn from the 

 books of the company. Under the head of operating 

 expenses is included manuring of a portion of the 

 acreage each year and the cost of producing, harvest- 

 ing and cribbing the crop. From this gross cost is 



