536 



Influence of Inanition on Metabolism. 



Table 256. Intake and output of nitrogen Continued. 



Date. 



(a) 



In 

 food. 



Kb) 



In 

 feces. 1 



(c) 



In 

 urine. 



Experiment jVo. 2. 

 1905. 



First week: 

 Apr. 12-13. 

 Apr. 13-14. 

 Apr. 14-15. 

 Apr. 15-16. 

 Apr. 16-17. 

 Apr. 17-18. 

 Apr. 18-19. 



Total, 1st week. . 

 Average per day. 



Second week: 

 Apr. 19-20. 

 Apr. 20-21. 

 Apr. 21-22. 

 Apr. 22-23. 

 Apr. 23-24. 

 Apr. 24-25. 

 Apr. 25-26. 



Total, 2d week. . . 

 Average per day. 



Grams. 



7.10 

 16.23 

 20.04 

 23.81 

 21.67 

 28.98 

 19.45 



137.28 

 19.61 



Grams. 



0.90 

 2.03 

 2.51 



2.98 

 2.72 

 3.63 

 2.45 



17.22 

 2.46 



Grams. 



11.14 

 11.65 

 15.08 

 13.89 

 16.53 

 17.93 

 12.72 



98.94 

 14.13 



(d) 



Gain (+) 



or loss ( ) 



a-(b + c). 



Grams. 



+ 

 + 

 + 

 + 

 + 

 + 



4.94 

 2.55 

 2.45 

 6.94 



2.42 

 7.42 

 4.28 



+ 21.12 

 + 3.02 



19.05 

 22.72 

 20.22 

 14.93 

 21.57 

 20.28 

 17.12 



135.89 

 19.41 



2.31 

 2.76 

 2.46 

 1.82 

 2.63 

 2.46 

 2.08 



16.52 

 2.36 



13.80 

 14.18 

 12.09 

 11.13 

 10.66 

 13.30 

 12.19 



87.35 

 12.48 



+ 

 + 

 + 

 + 

 + 

 + 

 + 



2.94 

 5.78 

 5.67 

 1.98 

 8.28 

 4.52 

 2.85 



+ 32.02 

 + 4.57 



1 Daily amounts calculated. See explanation, p. 294. 



Intake and output of phosphoric acid and sulphur. The phosphoric acid 

 (P 2 5 ) and sulphur (S0 3 ) were determined in the food and urine for each 

 day and in the feces for each week. The apportionment of the phosphoric 

 acid and sulphur for the feces for each day was carried out on substantially the 

 same plan as that for nitrogen, namely, the total phosphorus in the food for 

 the week was taken as 100 per cent and the proportion of this amount ingested 

 each day was taken as the proportion for each day of the total phosphorus de- 

 termined in the total feces for the week. The sulphur was apportioned by a 

 like method. From the phosphoric acid and sulphur in the food, feces, and 

 urine, the gains or losses were computed. These are recorded in table 257. 



Two features of special interest may be noted in these tables: First, the 

 excretion of a small amount of phosphorus in the urine during the first week 

 of the first feeding experiment compared with that during fasting experiment 

 No. 75 ; second, the marked gain of phosphorus after inanition. By examining 

 the data in column c of table 257 and comparing it with the phosphoric acid 

 excretion in experiment No. 75, it will be seen that for this first week the 

 phosphoric acid in the urine was on the whole very much smaller than during 

 the fasting period. In the experiment following No. 77 the same peculiarity 

 may be observed. The most noticeable feature in the data for phosphoric acid 

 is the gain on all the days of the first nitrogen metabolism experiment. The 

 gains were very considerable during the first 2 weeks and not so marked in the 

 last 2 periods. 



