PLATE 24 



A-B. — A cow (No. 642) and her calf, showing the effect of a ration of com grain, 

 wheat straw, and alfalfa hay. The addition of the alfalfa made growth possible and 

 reproduction normal. 



C-D. — A cow (No. 636) and her calf, showing the effect of a ration of com grain and 

 wheat straw. The result of a poor salt mixture. Growth was fair, but the mother was 

 in poor condition and dead offspring resulted. 



E-F. — A cow (No. 636) and her calf, showing the effect of a ration of com grain, 

 wheat straw, and organic salts. By the addition of the salts the mother's condition 

 not only improved, but normal calves resulted. 



