Phosphorus in Urine. 



407 



was much larger than in any of the experiments with Succi, while Breithaupt, 

 on the other hand, excreted phosphorus in about the same amounts as did Succi. 

 The lowest phosphorus output is found in the case of the subject J. 



Sohn eliminated extremely large amounts and, singularly enough, the excre- 

 tion increased throughout the whole experiment. 



Table 212. Ratio of nitrogen to phosphorus (P 2 OJ and amount of phosphorus 

 (P 2 OJ eliminated daily in urine by fasting subjects. 



Day of fast. 



J.l 



Suhn. 



Sub- 

 ject 

 I.* 



Flora 

 Tosca. 



Keller. 5 



Last food 

 day . . . 



1 



2 



3 



4 



5 



6 



8. 



9. 



10. 



Av.ratio^ 



(for fasting- 

 days only).. 



Grams. 



7.87 

 1.930 



91 



051 



30 



090 



6.64 



2.120 



5.90 



2.394 



5.18 



2.150 



53 



865 



85 

 601 



6.29 



1.360 



5.86 



1.246 



6.24 



Grams. 

 4.73 



1.90 



4.90 



1.78 



4.64 



1.82 



4.64 



1.95 



5.83 



1.46 



3.74 



2.64 



3.49 



2.47 



3.28 



2.32 



4.18 



1.48 



4.63 



1.49 



4.37 



1.23 



4.37 



Grams 



5.70 



2.98 



4.07 



2.75 



4.19 



2.52 



4.25 



2.54 



4.46 



2.51 



4.85 

 2.27 



4.13 



2.13 



4.22 



2.31 



4.19 



2.40 



4.24 



1.68 



4.43 



Grams. 

 4.89 



2.76 



5.22 



2.597 



4.30 



2 . 925 



3.99 



3.289 



4.17 



2.974 



3.73 



2.871 



3.79 



2 . 667 



4.09 



2.663 



5.17 



1.722 



5.24 



2.065 



10.00 



.948 



4.97 



Grams. 



4.84 

 2.69 



6.42 



1.56 



5.25 



1.89 



5.25 



2.53 



5.42 



2.360 



00 



19 



32 



29 



5.28 



Grams. 



40 



682 



20 



091 



51 



491 



03 



571 



Grams. 

 6.21 



3 . 381 



5.37 



2.303 



5.45 



2.268 



6.17 



2.270 



5.54 



2 5.052 

 3 



3 



4.43 



2.434 



60 



150 



4.S6 



4.442 



6.29 



5.20 



Grams. 

 4.53 



1.58 



3.97 



2.22 



3.81 



2.65 



4.41 



2.65 



4.06 



Grams. 

 5.24 



2.670 



5.65 



1.550 



4.58 



1.830 



4.04 



2.654 



20 



934 



50 



749 



7.23 



1.069 



8.57 

 0.713 



4.64 



1.658 



4.32 



1.702 



4.65 



1.461 



5.14 



Grams. 



41 



86 



55 



90 



24 



44 



54 



53 



3.94 



1 Reported by A. Sadovyen (2). 



2 Amount for 2 days. 

 "See Note (2). 



4 Reported by Schreiber and Waldvogel ; probably as P 2 5 . 



6 Reported by A. Keller, Zeit. f. physiol. Chemie (1900), 29, p. 165. 



With the subject of Schreiber and Waldvogel, the excretion is not far from 

 that of Sohn for the corresponding days of the fast. The more recent obser- 

 vations on the fasting girl, Flora Tosca, show a relatively large excretion of 

 phosphoric acid, assuming that her body-weight (which unfortunately was not 

 given) is lower than that of the other fasting subjects. 



There is as a rule a tendency for the phosphoric acid excretion to increase 

 for a few days after fasting begins and then subsequently to diminish. Some 

 instances of an extremely low excretion are to be observed, namely, on the tenth 



