896 



INFLUENCE OF FOOD PRESERVATIVES ON HEALTH. 



metabolism of nitrogen, especially that part appearing in the feces 

 which is credited as nonmetabolized nitrogen. The preservative, 

 both in the form of sulphites and in a free state, gives concordant 

 results in this respect. There is little effect upon the metabolized 

 nitrogen in the urine, though the sulphites appear to slightly increase 

 the amount metabolized and the sulphurous acid to slightly diminish it. 



TABLE XV. Nitrogen balances for Series VII. 



[Averages are per day.] 



No. 1. 



