CONCLUSIONS. 61 



a smaller proportion of the absorbed nitrogen than did the rabbits 

 fed inorganic phosphorus. AVitli a few exceptions, the daily balances 

 were positive. 



The rabbits fed organic phosphorus excreted less phosphorus 

 through the kidneys than did those iVd inorganic phosphorus, but 

 they retained a larger proportion of the absorbed phosphorus. 



PRINCIPAL FEEDING PERIOD. 



The percentages of absorbed nitrogen retained in the case of the 



rubbiis led inorganic phosphorus show a wide variation, the average 

 figure being practically the same as that for rabbit No. 1 fed organic 

 phosphorus, rabbit No. - being excluded from the average. Accord- 

 ingly, it is impossible to establish any ^ll'ect produced on the nitrogen 

 metabolism by the two forms of phosphorus fed. 



A laiger proportion of the ingested phosphorus was eliminated by 

 the kidneys in the cases of tin rabhits fed inorganic phosphorus than 

 where the rabbits were fed organic phosphorus. The proportion of 

 rhed pho-phonis retained is greater for the rabbits fed on organic 

 phosphorus. The d. QCCfl Wen positive with the c-xceptiou of 



r:i!)l>it No. L', which died I w<> \\eeks before the close of the experiment. 



The ether phosphorus balances show tliat more 



phosph >ru> in this form wa> eliminated in the feces where phytin was 



ilian \\hrre mop/aiiir pho-phorii- wafl fed. 



\o r'li.T-;ilcohol-so!uble phosphor; .umd in the urine in any 



. and it is doubtful if any organic phosphoric ia present in the 

 urine of a normal rabbit. 



A smaller proportional B um of calcium was eliminated in the 



urine by the rabbits fed on moriraiiie. phosphorus, hut . pro- 



port iona 1 amount \\ -ied in the hodv than in the ca>es of the 



rabbits fed on organic phosphorus. The same >t atement is true of 

 iiesium. 



IMr-M<UM l.M 1. \\MIN MI<>\. 



A large proportion of the phosphoric of (he fresh intestines of 

 rabbits is dissolved by water durinir the process of cleaning prepara- 



The hone-; of rabbit x fed on phosphorus for several months, either 



nic or inorganic, show a higher content of ether-soluble matter 



than do the hones of normal rabbits, and they form a larger percent- 



of the body weight than in the case of normal rabbits. 

 The livers of the rabbits fed on organic phosphorus for several 

 months sh,>\\ 1'aMv degeneration as well as fatty infiltration. Of the 

 livers of the inorganic phosphorus fed rabbits No. 4 shows both fatty 

 degeneration and fatty infiltration; in the case of No. 3, only slight 

 fatty infiltration is .shown. The livers are. enlarged and contain 



