New York AGRICULTURAL EXPERIMENT STATION. ay, 
about by washing the bran there was nothing in the kind, quanti- 
ties, or variations in the nutrients fed that could account for the 
different effect of the two rations. The digestible dry matter con- 
sumed varied from 13.3 pounds to 16.1 pounds daily, of which 
from 2.6 pounds to 2.9 pounds consisted of digestible protein. In 
no period was the ration so scanty as to produce abnormal results 
and the change in the quantity of digestible dry matter and protein 
eaten did not especially favor either ration. 
2. The amounts and forms of ingested phosphorus in the two 
rations—The amounts of phosphorus ingested in the several 
periods varied greatly, ranging from 12.8 grams to 21.4 grams 
daily in the low phosphorus period, the daily quantities in the 
three high phosphorus periods being 78.7 grams, 83.3 grams and 
80.7 grams. These differences were brought about chiefly by 
removing the phytin from the bran, 62 per ct. to 65 per ct. of the 
phosphorus supply in ration No. 2, or from 51 to 52 grams daily, 
being carried in this compound. The daily amount of fixed phos- 
phorus in ration 2 varied from 24.4 to 28.6 grams or from 31 
per cent. to 34 per cent. of the whole. The quantity of proteid 
phosphorus in this ration was two or three time greater than that 
of ration 1, because of the fact that the unwashed bran and hominy 
feed contained much more phosphorus in insoluble forms than did 
the washed bran and rice. The amount of inorganic phosphorus 
fed, which was found entirely in the straw, was very small and was 
uniform in quantity. It is clear, therefore, that in studying the 
comparative effect of these two rations as far as phosphorus com- 
pounds are concerned, our attention should be fixed mainly upon 
phytin and what we have designated as the fixed phosphorus com- 
pounds or what doubtless approximate very closely to the nucleo- 
proteids and nucleins. (See Tables 6 and 7.) 
3. The relation in amounts and forms of the ingested and the ex- 
creted phosphorus.—The amount of outgoing phosphorus followed 
in a general way the quantity ingested, but within narrower limits. 
it is interesting to note that the animal excreted considerably more 
pnosphorus than she received during the time that the washed bran 
ration was being fed. The fact is worthy of record that she was 
maintained in an apparently healthy condition on a ration which 
supplied 21.2 grams of phosphorus daily from May 20 to May 26, 
