PLATE i8 

 Cattle showing the effect of a ration of wheat grain and wheat straw: 



A. — Condition at the initiation of the experiment. June, 1910. 



B. — Condition after 12 months on the ration. Note the sluggish and sleepy condi- 

 tion. Jime, 191 1. 



C. — Condition after 12 months on the ration. Note the distinct emaciation. June, 

 1911. 



D. — Condition of two yearlings after 18 months on the ration. Both are in sluggish 

 condition and one of them is blind. December, 191 1. 



