648 INFLUENCE OF FOOD PKESERVATIVES ON HEALTH. 



preservative having decidedly increased the quantity of fat in the 

 feces, thus indicating a decrease in the quantity absorbed from the 

 alimentary canal. 



No. 7. 



In the case of No. 7 the average daily quantity of fat in the food 

 for the fore period is 67 grams, for the preservative period 66.51 

 grams, and for the after period 64.94 grams. Of this quantity there 

 appear in the feces of the fore period 2.17 grams, in the preservative 

 period 1.75 grams, and in the after period 2.55 grams. Expressed in 

 percentages of the total quantity of fat in the food there is found to 

 be excreted in the feces in the fore period 3.24 per cent, in the pre- 

 servative period 2.64 per cent, and in the after period 3.93 per cent. 

 In this case the data again indicate the marked effect of the preserv- 

 ative in increasing the quantity of fatty substances absorbed from the 

 alimentary canal, and thus decreasing the quantity appearing in the 



feces. 



No. 8. 



The average daily quantity of fat in the food of No. 8 in the fore 

 period is 63.14 grams, in the preservative period 63.34 grams, and in 

 the after period 62.58 grams. Of this quantity there appear in the 

 feces of the fore period 2.25 grams, of the preservative period 2.60 

 grams, and of the after period 2.40 grams. Expressed as percentages, 

 the total amount of fat in the food of No. 8 excreted in the feces of 

 the fore period is 3.56 per cent, of the preservative period 4.10 per 

 cent, and of the after period 3.83 per cent. These data agree with 

 those of No. 6, and show the effect of the administration of the pre- 

 servative in decreasing the absorption of the fatty substances from 

 the alimentary canal and the increase of these substances in the feces. 



No. 9. 



The average daily quantity of fat in the food of No. 9 in the fore 

 period was 136.79 grams, in the preservative period 133.95 grams, and 

 in the after period 128.91 grams. Of this quantity there appeared in 

 the feces of the fore period 2.49 grams, in the preservative period 3.45 

 grams, and in the after period 2.57 grams. Expressed as percentage 

 of the total amount of fat in the food, No. 9 excreted 1.82 per cent in 

 the fore period, 2.57 per cent in the preservative period, and 1.99 per 

 cent in the after period. 



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

 subject are not included in the summaries. They are stated here, 

 however, as a matter of record. 



No. 10. 



The average daily quantity of fat in the food of No. 10 in the fore 

 period is 97.51 grams and in the preservative period 91.49 grams. Of 



