154 



INFLUENCE OF FOOD PBESERVATIVES ON HEALTH. 



TABLE XXII. Summary of weight and water content offeces, by series Continued. 



SERIES V THREE MEN. 



SERIES V FOUR MEN. 



THE URINE. 



NITROGEN AND PHOSPHORIC ACID ELIMINATED. 



The quantities and percentages of nitrogen and phosphoric acid 

 eliminated in the urine are important data in the study of the influence 

 of an added preservative upon metabolism. The quantities of each of 

 these substances in the food, the quantities eliminated, and the per- 

 centages eliminated are given in Tables XLV-LXVI. (See appendix.) 



SERIES I. 



NITROGEN. 



The total quantity of nitrogen found in the urine during the fore 

 period of Series I is 459.991 grams, an average daily quantity of 13.53 

 grams for each man. The total quantity of nitrogen in the food cor- 

 responding to this amount in the urine is 583.941 grams, or 17.17 

 grams a day for each man. The average percentage of the total nitro- 

 gen eliminated in the urine varies greatly in different individuals. It 



