148 INFLUENCE OF FOOD PRESERVATIVES ON HEALTH. 



increases in a very marked degree during the after period. Of the 

 calories in the food, 2. 7 per cent appear in the feces in the fore period, 

 3.8 per cent in the preservative period, and 4.8 per cent in the after 

 period. In this instance we again see a tendency on the part of the 

 preservative to diminish the absorption of the calorific elements of 

 the food, and this tendency increases during the after period. In this 

 case we have practically the same effect as is noted in the case of No. 1, 

 namely, a progressive decrease in the amount of nutrients absorbed 

 during the preservative period, and a notable accentuation of this 

 condition during the after period. 



No. 3W. S. 0. 



The percentage of water in the feces of No. 3 during the fore period 

 is 79.07, during the preservative period 78.09, and during the after 

 period 75.13. There is a slight tendency manifest in this case to 

 decrease the quantity of water in the feces during the preservative 

 period, and this tendency becomes very marked during the after 

 period. The total solids in the feces during the fore period are 24.7 

 grams, during the preservative period 26.3, and during the after 

 period 35.6. Here is seen a progressive increase in the quantity of 

 solids in the feces under the administration of the preservative, and 

 this increase is greatly accentuated during the after period. Of the 

 nitrogen in the food, 10.5 per cent appears in the feces in the fore 

 period, 9.4 per cent in the preservative period, and 10.1 per cent in the 

 after period. In this instance there is an apparent tendency on the 

 part of the preservative to increase the quantity of nitrogen absorbed. 

 Of the phosphoric acid in the food, 38.6 per cent appears in the feces 

 in the fore period, 35.2 per cent in the preservative period, and 38.7 

 per cent in the after period. These data show an apparent tendency 

 on the part of the preservative to increase the quantity of phosphoric 

 acid absorbed. Of the total fat in the food, 6.6 per cent appear in the 

 feces in the fore period, 5.7 in the preservative period, and 7.2 in the 

 after period. In this case, also, there is an apparent tendency on the 

 part of the preservative to increase the absorption of the fat. Of 

 the total calories in the food, 4.3 per cent appear in the feces in the 

 fore period, 4.2 in the preservative period, and 5.1 in the after period. 

 We have again in this case a tendency on the part of the preservative 

 to increase the absorption of the calorific elements of the food. The 

 data in the case of No. 3, as will be seen, do not coincide in their gen- 

 eral tendency with those of Nos. 1 and 2. 



No. 4E. C. S. 



This subject withdrew f roin the table May 25, before the comple- 

 tion of the preservative period. The data in his case are therefore 

 not given here, but may be found in the detailed tables, 



