140 ILLINOIS STATE DAIRYMEN'S ASSOCIATION 



was indicated by the sum of his rankings in the various 

 classes. 



For instance sire E ranked first in average milk yield 

 of daughters, third in average butterfat yield, fifth in ave- 

 rage increase of milk, fifth in average increase of butter- 

 fat, first in percentage of daughters making increase in 

 milk, and first in percentage of daughters making increase 

 in butterfat. The sum of these rankings is 16, which, being 

 the smallest ranking number, places him at the head of the 

 list. 



On the other hand, sire V, at the bottom of the list of 

 sires, ranked nineteenth, twentieth, twenty-third, twenty- 

 second, seventeenth, and sixteenth respectively in these 

 same classes, giving him a total ranking of 117, or more 

 than any other sire in the list. 



The complete discussion of this study has been pub- 

 lished in Department Bulletin No. 1372, just issued. A 

 copy may be obtained, while the supply lasts, by writing to 

 the United States Department of Agriculture, Washington, 

 D. C. 



