New YorK AGRICULTURAL EXPERIMENT STATION. 15 
in the amounts of outgoing phosphorus compounds occurred almost 
wholly with the morganic salts found in the excretions. The 
organic phosphorus bodies of the excretions were but little affected, 
if at all, by the proportions of phosphorus compounds in the food. 
Variations in the phosphorus supply appeared not to modify the 
appropriation of this element by the milk. 
3. No relation whatever appears to exist between nitrogen excre- 
tion and phosphorus excretion. 
4. It is shown without question that the physiological effect of 
the two rations, due to the withdrawal from the bran of such 
compounds as were soluble in slightly acidulated water, differed 
to a marked degree. With the washed bran ration as compared 
with the one containing the unwashed bran, the following differ- 
ences were observed. 
a. Drier and much firmer feces with the washed bran ration, 
accompanied by a constipated condition, requiring in some cases 
the use of a purgative. 
b. A marked disturbance of appetite when a sudden change was 
made froin the washed bran ration to the one containing the 
unwashed bran, indicating some specific physiological influence 
of the compound or compounds removed from the bran by leach- 
ing. 
c. A greatly reduced flow of urine following a change from the 
unwashed bran to the washed bran ration, the reverse taking place 
when a reverse change was made. 
d. An increase in the flow of milk consequent upon the with- 
drawal from the ration of the phytin and other water-soluble con- 
stituents of bran. 
e. A reduction, sometimes large, in the percentage of fat in the 
milk consequent upon the withdrawal from the ration of phytin 
and other water-soluble constituents of bran. 
f. A decreased production of butter-fat during the period the 
washed bran ration was fed, notwithstanding a somewhat increased 
flow of milk. 
g. The entire cessation of the oestrtim period with cow 1 and a 
temporary disturbance of this period with cow 2. 
Whether the physiological effects above indicated were due to 
phytin wholly or in part to compounds leached out with the phytin 
