An example of improvement of dairy cows by grading. 



A. Scrub cow. Best record, 4588.4 Ibs. milk,* and 210.67 Ibs. of fat. 



B. Holstein X scrub cow, first cross, daughter of scrub shown in A. Four 

 year old record, 6822.8 Ibs milk, and 283.75 Ibs. fat, an increase of 49 per 

 cent in milk, 41 per cent in fat, and $22.38 in profit over dam's best record. 



C. Second generation Holstein grade heifer calf, daughter of cow shown in 

 B. Not until the second generation do most Holstein grades show white 

 markings typical of pure breds (Iowa Agricultural Experiment Station.) 



