666 INFLUENCE OF FOOD PEESEBVATIVES ON HEALTH. 



preservative periods and slightly less in the after period. The quan- 

 tity appearing in the urine is greater in the preservative period than 

 at any other time. These data show but little effect of the preserva- 

 tive in decreasing the calories in the feces, but a somewhat marked 

 effect in increasing the calories in the urine. The general tendencj 7 

 therefore is to excrete more organic matter in the urine during the 

 administration of the preservative. 



No. 7. 



The calories in the food of No. 7 for the fore and preservative 

 periods are almost the same, but they were slightly increased in the 

 after period. The data show a very notable decrease in the calories 

 of the feces during the preservative period and a slight decrease in 

 the calories of the urine. These data show a very marked tendency 

 on the part of the preservative to increase the heat consumption of 

 the food during the metabolic processes. 



No.*. 



The calories in the food of No. 8 are very markedly less in the fore 

 period than in the preservative and after periods. The quantity 

 appearing in the feces is correspondingly increased with the increase 

 of the amount in the food. This is not true, however, of the calories 

 in the urine during the preservative period, but is partially true in the 

 after period. In this case there seems to be no notable effect as 

 respects the calories resulting from the administration of the preserva- 

 tive. Considering the percentage figures, however, it is seen that 

 there is an increase in the amount excreted in the feces and a decrease 

 in the amount in the urine, resulting in a very slight total increase in 

 the total percentage excreted in the preservative period. In the after 

 period this slight total increase continues, due to the increase in the 

 amount excreted in the urine, the amount in the feces remaining the 

 same as in the preservative period. 



No. 9. 



The calories in the food of No. 9 are somewhat greater in the fore 

 period than in either the preservative or after period. Notwithstand- 

 ing this, however, the calories of the feces are greater in the preserva- 

 tive period than in the fore period, and are somewhat greater in the 

 after period than in the fore period. The calories of the urine are 

 practically the same for the three periods. 



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. 



