SALICYLIC ACID AND SALIC YLATES. 683 



These data show that the quantity of solids in the feces diminished 

 slightly in the preservative period and also in the after period. The 

 solids in the urine increase slightly in the preservative period and to 

 a greater extent in the after period. The percentage of solids in the 

 feces is greatest in the fore period and smallest in the after period. 

 The percentage of solids in the urine is least in the fore period and 

 greatest in the after period. 



No. 3. 



The quantity of solids in the food during the fore period is 530 

 grams, during the preservative period 592 grams, and during the 

 after period (second subperiod only) 633 grams. This shows a very 

 marked increase in the amount of food eaten in the preservative 

 period over the fore period and in the after period over the pre- 

 servative period, due to the fact that in this case the quantity of food 

 was increased after the recovery of the subject from the illness occurring 

 in the fore period. Expressed in percentages, the largest quantity of 

 solids eliminated in the feces is in the preservative period, namely, 

 2.98, and the smallest in the after period, namely, 2.56. In the urine 

 the smallest quantity was eliminated in the preservative period, namely, 

 7.92, and the largest in the fore period, namely, 9.51. The balances 

 are very marked, being highest in the after period and lowest in the 

 fore period. 



No. 3 is, of course, an exceptional case by reason of the illness 

 experienced in the early part of the experiment. The data, therefore, 

 are given merely for their individual worth and not because they have 

 any value for comparison. 



No. 4. 



The total quantity of solids consumed in the food by No. 4 during 

 the fore period is 535 grams, during the preservative period 556 grams, 

 and during the after period 569 grams. In the feces there appear in 

 the fore period 20 grams daily of solids, in the preservative period 

 19 grams daily, and in the after period 18 grams daily. In the urine 

 during the fore period are found 63 grams of solids, in the preserva- 

 tive period 67 grams, and in the after period 70 grams. The percent- 

 age of solids in the fore period recovered in the feces is 3.76 daily, in 

 the preservative period 3.50, and in the after period 3.24. The per- 

 centages of solids recovered in the urine daily are 11.72 in the fore 

 period, 12.06 in the preservative period, and 12.27 in the after period. 

 The balances are 452 grams daily in the fore period, 469 in the pre- 

 servative period, and 481 in the after period. There appears to be a 

 slight tendency in this case for the preservative to diminish the quan- 

 tity of solids in the feces, and this tendency is continued through the 

 after period. There is a progressive increase of the solids in the urine 



