SALICYLIC ACID AND SALICYLATES. 629 



No. 5. 



The total quantities of sulphur ingested by No. 5 in the three 

 periods are 1.008 grams, 1.033 grams, and 1.015 grams, respectively. 

 Of this quantity there appear in the feces 0.146 gram, 0.126 gram, and 

 0.106 gram, respectively, and in the urine 0.828 gram, 0.908 gram, 

 and 0.919 gram, respectively. Expressed in percentages, of the sul- 

 phur in the f ood 2 it is seen that there appears in the feces for the three 

 periods 14.46 per cent, 12.20 per cent, and 10.41 per cent, respect- 

 ively, and in the urine 82.14 per cent, "87.91 per cent, and 90.54 per 

 cent, respectively. 



The balance is slightly positive in the fore period, very slightly 

 negative in the preservative period, and slightly negative in the after 

 period. These data show that the general effect of the preservative in 

 this case is to decrease the quantity of nonmetabolized sulphur excreted 

 and to increase the quantity of metabolized sulphur. 



No. 6. 



The quantities of sulphur in the food of No. 6 for the three periods 

 are 0.912 gram, 0.961 gram, and 0.929 gram, respectively. Of this 

 quantity there appear in the feces for the three periods 0.145 gram, 

 0.159 gram, and 0.147 gram, respectively, and in the urine 0.783 gram, 

 0.920 gram, and 0.896 gram, respectively. Expressed in percentages, 

 of the total sulphur in the food, it is seen that there appear in the 

 feces 15.92 per cent, 16.50 per cent, and 15.80 per cent, respectively, 

 for the three periods, and in the urine 85.95 per cent, 95.80 per cent, 

 and 96.42 per cent, respectively, for the three periods. The balance 

 is slightly negative in the fore period and very decidedly negative in 

 both the preservative and after periods. The data show a slight 

 increase in the nonmetabolized sulphur excreted during the preser- 

 vative period and a very marked increase in the excretion of the 

 metabolized sulphur in the preservative period. 



No 7. 



The quantities of sulphur in the food of No. 7 for the three periods 

 are 0.826 gram, 0.875 gram, and 0.869 gram, respectively. Of this 

 quantity there appear in the feces 0.094 gram, 0.074 gram, and 0.114 

 gram, respectively, for the three periods, and in the urine 0.804 gram, 

 0.827 gram, and 0.754 gram, respectively. Expressed in percentages, 

 of the total sulphur in the food there appear in the feces for the three 

 periods, respectively, 11.35 per cent, 8.42 per cent, and 13.14 per cent, 

 and in the urine 97.25 per cent, 94.62 per cent, and 86.74 per cent, 

 respectively. The balance is negative in the fore period, slightly 

 negative in the preservative period, and very slightly positive in the 



