134 INFLUENCE OF FOOD PRESERVATIVES ON HEALTH. 



ative period than during the fore period. In regard to moisture, there 

 is scarcely any change noted, but what little there is indicates a slightly 

 drier consistence of the feces during the preservative period. 



NO. 11 j. s. a 



The data for No. 11 are likewise incomplete and are of little value 

 for comparative purposes. 



jVo. 12 B. J. T. 



In the case of No. 12 the tables show that 8.3 per cent of the nitro- 

 gen exhibited in the food is eliminated in the feces during the fore 

 period, while for the preservative period the per cent eliminated is 

 9.8. Of the phosphoric acid, 35.5 per cent of that exhibited in the 

 food appears in the feces in the fore period, and 37.2 during the pre- 

 servative period. Of the fat administered in the food, 3.4 per cent 

 appears in the feces in the fore period, and 4.8 in the preservative 

 period. Of the total calories consumed in the food, 3. 8 per cent appears 

 in the feces in the fore period and 4.2 in the preservative period. As 

 respects the moisture in the feces, it is seen that it amounts to 76.95 

 per cent in the fore period and 76.18 in the preservative period. The 

 data in this case also indicate a slight depressing effect of the preserva- 

 tive upon the absorption of the nitrogen in the alimentary canal. The 

 effect upon the absorption of the phosphorus is also slight. As regards 

 the digestion and assimilation of the fat, it appears to have been con- 

 siderably interferred with by the administration of the preservative. 

 The total number of calories in the feces, it is seen, is slightly increased 

 in the preservative period over the quantity in the fore period. In 

 regard to the moisture in the feces, it is remarkably constant during 

 the whole of the observation, and no effect which can be justly noted 

 is produced by the administration of the preservative. No. 12 was ill 

 during the after part of the preservative period and the data must 

 be considered in connection with the fact that although the quantity 

 of food eaten was greatly diminished the debris of tissue broken 

 down was quite abundant. 



SUMMARY. 



Summarizing the practically complete data of Nos. 7 and 10 we find 

 the following results: The average total moist feces per day per man 

 for the fore period is 127 grams and of dry feces 31.5. During the 

 preservative period the average total moist feces is 152.9 grams and 

 the dry matter 35.3. There seems to be here a slight tendency on the 

 part of the preservative to increase the total weight of dry matter 

 voided in the feces. In regard to water, the average content of the 

 feces in the fore period is 75.20 per cent and in the preservative 

 period 76.91. 



The mean percentage of nitrogen eliminated in the fore period for 



