PLATE 30 



A-B.— The same cow (No. 653) shown in Plate 29, D, illustrating the effect in 1916 

 of the same ration as in 191 5. This calf was bom weak (fig. B). Note the deflection 

 of the head and neck. It was unable to stand. Photographed a few hours after birth. 

 Given the mother's milk it gradually improved, as shown in figure A. This illus- 

 trates how continuation of this ration over a second gestation period may weaken the 

 offspring. The toxicity of the wheat grain was cumulative in effect. 



C-D.— A cow (No. 562) and her calf, showing the effect of a ration of wheat embryo, 

 com starch, and com stover. The embryo of the wheat grain carried a considerable 

 mass of toxicity. Massing this in the ration brought on early abortion, with a gestation 

 period of six to seven months. Note the very good general appearance of the mother. 



E. — A cow (No. 654) and her calf, showing the effect of a ration of wheat grain, 

 casein, and com stover. This iHustrates how by the improvement of the salt mixture 

 of a ration and probably by introducing an abundance of the growth-promoting sub- 

 stances through the substitution of com stover for wheat straw, and in addition by 

 improving the proteins of the ration by the use of casein the wheat grain toxicity can 

 be overcome. Both cow and calf were strong and vigorous. 



