PLATE 25 



A-B. — A cow (No. 641) and her calf, showing the effect of a wheat grain and corn- 

 stover ration. The mother was in fair condition and the offspring was fairly strong. 

 Contrast with Plate 23, A, B. This indicates how this roughage (com stover) in 

 some cases adequately supplements the wheat grain, but was not successful with all 

 individuals. 



C. — The calf of cow 641, showing the effect of a ration of wheat grain, wheat straw, 

 and magnesium citrate. An illstration of an unsuccessful attempt to improve the 

 wheat ration with a magnesium salt. In no case could it be done. The calf was 

 dead and immature. 



D. — The calf of cow 651, showing the effect of a wheat-grain, wheat-straw, and 

 organic-salt mixtiue. No mixture of salts alone made the ration a normal one for 

 reproduction. This calf was bom 35 days ahead of time, weak, and died soon after 

 birth. Note the tendency to throw the head back, a characteristic attitude taken 

 by such animals when alive. 



E-G. — A cow (No. 570) and her calf, showing the effect of a wheat-grain, wheat- 

 straw, and organic-salt mixtvire. This shows the possibility of maintaining the 

 mother in apparently fair condition by additions of a salt, but dead or weak offspring 

 result. This calf lived three days. It had a peculiar blat, entirely unlike normal 

 calves. 



