SALICYLIC ACID AND SALIC YLATES. 687 



the feces in the fore period, 24 grams in the preservative period, 

 and 22 grams in the after period; 70 grams of solids appear daily in 

 the urine in the fore period, 69 grams in the preservative period, and 

 66 grams daily in the after period. Expressed in percentages the 

 largest percentage of the solids in the feces is in the fore period, 

 namely, 4.04 per cent, and the smallest in the after period, namely, 

 3.53 per cent. The largest percentage of solids is found in the urine 

 in the fore period, namely, 11.27 per cent, and the smallest in the after 

 period, namety, 10.73 per cent. The largest balance in this case is in 

 the preservative period, namely, 530 grams daily, and the smallest in 

 the fore period, namely, 526 grams daily. In this case the effect 

 of the preservative upon the solids balance is very slight. There is 

 a tendency, however, to diminish the solids in the feces during 

 the preservative period and this tendency is increased in the after 

 period. The solids in the urine in the fore period and preservative 

 period are almost identical, but there is a small decrease in the after 

 period perhaps due in part to the slightly decreased quantity of solids 

 in the food; the percentage of decrease, however, is slightly greater 

 in the after than in the preservative period. 



No. 12. 



The total quantity of solids in the food of No. 12 in the fore period 

 is 660 grams daily, in the preservative period 653 grams daily, and 

 in the after period 640 grams daily. The total solids in the food in 

 this case diminished slightly in the preservative period and again in 

 the after period. Of these solids 27 grams were found daily in the 

 feces of the fore period, 21 grams in the preservative period, and 23 

 grams in the after period. In the urine 63 grams of solids daily are 

 found in the fore period, 65 grams in the preservative period, and 67 

 grams in the after period. The largest percentage of solids in the 

 feces is in the fore period, namely, 4.12 per cent, and the smallest in 

 the preservative period, namely, 3.20 per cent. In the urine the 

 largest percentage of solids is found in the after period, namely, 10.54 

 per cent, and the smallest in the fore period, namely, 9.56 per cent. 

 The largest balance is found in the fore period, namely, 570 grams 

 daily, and the smallest in the after period, namely, 550 grams daily. 

 In this case the preservative exerts a marked tendency to diminish 

 the amount of solids in the feces during the preservative period, a 

 tendency which was only partly overcome in the after period. 



