SALICYLIC ACID AND SALICYLATES. 611 



ingested is greater in the after period than in the fore period. The 

 elimination of nonmetabolized phosphoric acid in the after period was 

 distinctly greater than in the fore period, but not so great as in the 

 preservative period. 



For reasons given elsewhere (p. 587) the results obtained with this 

 subject are believed to be untrustworthy and are not included in the 

 summaries. 



No. 10. 



The quantity of phosphoric acid consumed in the food by No. 10 

 during the fore period amounts to 4.324 grams daily, of which 1.087 

 grams appear in the feces and 2.233 grams in the urine. These data 

 correspond to 25.15 and 51.64 per cent, respectively, of the total phos- 

 phoric acid in the food. The balance during the fore period was 

 strongly positive, amounting to 1.044 grams per day. 



During the preservative period the quantity of phosphoric acid con- 

 sumed is somewhat greater than in the fore period, amounting to 4.584 

 grams per day, of which 0.907 gram appears in the feces and 2.244 grams 

 in the urine. This is equivalent to 19.79 and 48.95 per cent, respec- 

 tively, of the total amount of phosphoric acid in the food. The bal- 

 ance, therefore, is even more strongly positive than in the fore period, 

 amounting to 1.433 grams per day. 



Owing to illness, No. 10 was ot continued in the experiment during 

 the after period. For reasons given elsewhere (p. 587) this subject is 

 omitted from the summaries. The results are given here, however, 

 as a matter of record. 



No. 11. 



The quantity of phosphoric acid consumed in the food by No. 11 

 during the fore period amounts to 4.373 grams per da3^ of which 

 1.568 grams appear in the feces and 2.863 grams in the urine. These 

 data correspond to 35.85 and 65.46 per cent, respectively, of the total 

 phosphoric acid in the food. It is seen that this causes a negative 

 balance of small magnitude, equivalent to 0.057 gram per day. 

 During the fore period, therefore, No. 11 was excreting a slightly 

 greater quantity of phosphoric acid than he was ingesting. During 

 the preservative period the quantity of phosphoric acid ingested is 

 slightly increased, amounting to 4.573 grams per day, of which 1.541 

 grams appear in the feces and 2.481 grams in the urine, correspond- 

 ing to 33.69 and 54.25 per (^nt, respectively, of the total phosphoric 

 acid in the food. These data indicate a strongly positive balance the 

 magnitude of which is equivalent to 0.551 gram per day. During the 

 after period No. 11 consumed 4.572 grams of phosphoric acid daily, 

 of which 1.697 appear in the feces and 2.209 grams in the urine, corre- 

 sponding to 37.12 and 48.31 per cent, respectively, of the total quan- 

 tity of phosphoric acid contained in the food. This indicates a still 



