CATTLE. 



237 



The following table shows the difference in income between 

 ten good cows and ten inferior cows as indicated by results : 



PROBLEM. 



What was the total profit yielded by the ten best cows and what was 

 the total profit yielded by the ten poorest cows in the test shown in the 

 above table? 



NOTE. Write for bulletins 233 and 129 and 2 given in references 

 at the end of this chapter. These will tell you how to organize an asso- 

 ciation. 



One of the most famous dairy cows in the world was pur- 

 chased for an ordinary price from a man who kept no records 

 of her production and consequently did not know her real value. 

 Her great value was only determined after she was tested and it 

 was learned that she could produce i,in pounds of butter in 

 less than a year. 



AVERAGE YEARLY PRODUCTION PER COW IN THE U. S. 



