92 Report oF DEPARTMENT OF ANIMAL HUSBANDRY OF THE 
of inorganic phosphorus was small and similar in the two rations. 
These figures make it evident that the quantities and proportions 
of phosphorus compounds in these two rations were quite similar 
to what was found in the rations used in experiment I. (See 
Tables 31-33.) 
3. The relation in amounts and forms of the mgested and the 
outgoing phosphorus.—The comments offered under this heading 
in discussing experiment 1 could be repeated here in the main as 
accurately characterizing the outcome of this experiment. Briefly 
stated, the amount of excreted phosphorus rose and fell with the 
food supply; during the feeding of the high phytin ration phos- 
phorus storage occurred while with the low phytin ration the outgo 
of phosphorus was an average of 10.8 grams per day more than 
the income, a condition which the animal sustained through one 
period of 30 days without serious effects; the phytin phosphorus 
and that in the unused nucleo-proteids was practically all reduced 
to inorganic forms; the variations in the outgoing phosphorus were 
chiefly changes in the proportions of the inorganic salts of this 
element and finally no evidence was secured showing that there 
was any synthesis of the phosphorus-bearing proteids. (See Tables 
30-33.) 
4. Distribution of outgoing phosphorus compounds im the milk 
and egesta.—Again the outcome of this experiment is similar to 
what was observed with the first one, viz., the rise and fall of 
phosphorus compounds in the egesta occurred chiefly in the feces, 
though to a considerable extent in the urine. When the larger 
amount of phosphorus compounds was fed, there was a marked 
increase in the inorganic phosphorus compounds of the feces and 
urine. Casein secretion was not affected by the phosphorus sup- 
ply and the proportions of organic phosphorus bodies in the egesta 
appeared not to be affected by the supply of these in the food. (See 
Tables 28 and 31-33.) 
5. Physiological effects due to variations in the phosphorus 
bodies of the two rations—A larger proportion of ration I was 
digested than of ration 2, due undoubtedly to the fact that the 
washed bran was less digestible than the unwashed. Practically 
the same proportion of nitrogen was digested from the two rations, 
but there was a somewhat greater storage of nitrogen compounds 
from ration 1 than from ration 2, a result evidently independent 
