New YorK AGRICULTURAL EXPERIMENT STATION. 83 
EXPERIMENT III. 
This was a repetition of the experiment involving variations in 
the phytin content of the rations. 
In the experiment of 1904 (Experiment 1), in which the rations 
were made to differ chiefly by the substitution of washed for 
unwashed wheat bran, thus causing very large variations in the 
phytin content of the food, certain very remarkable results were 
obtained, which should not be accepted as final without substantia- 
tion through further observations. Consequently it was decided 
to repeat the phytin experiment, and as the animal used in Experi- 
ment 2 had become accustomed to experimental conditions and to 
the washed bran ration, it was decided to continue work with her. 
THE EXPERIMENTAL ANIMAL, 
The animal has been described in the details given for the nucleo- 
proteid experiment. (Experiment 2.) 
MANAGEMENT OF THE EXPERIMENT. 
The management of this experiment was similar in all its details 
to that of the two former experiments, other than some differences 
which may have occurred in the sequence of the feeding periods. 
THE RATIONS. 
The components of the ration, outside of the bran, were oat 
straw, rice and wheat gluten. To these basal feeds washed bran 
was added in certain periods and unwashed bran in others. In 
the first experiment when the change was made from the washed 
bran to the unwashed bran ration, hominy feed was substituted 
for the rice meal. In this experiment this substitution did not 
take place but the rice meal was continued in both rations. By 
this arrangement the variations in the nucleo-proteid content of 
the rations were not emphasized by the substitution of hominy 
meal for the rice. As in the other experiments the protein supply 
was regulated by varying the quantity of wheat gluten. 
CHARACTER AND SEQUENCE OF THE RATIONS. 
Reference to the nucleo-proteid experiment shows that the cow 
during the last period of that experiment was fed the washed 
