626 



INFLUENCE OF FOOD PRESERVATIVES ON HEALTH. 



TABLE XV. Phosphoric add balances for Series VI Continued. 



[Averages are per man per day.] 

 for nine men (ISTos. 3, 9, and. 1O excluded.). 



SULPHUR BALANCE. 



The sulphur which enters the body in the food exists in at least two 

 states, namely, organic sulphur, as a constituent of the protein matter, 

 and inorganic sulphur, as found in sulphuric and sulphurous acids and 

 their salts. In the discussion of the balance these two kinds of sulphur 

 are considered together, whereas in the further investigation of the 

 metabolic products a separation is secured. 



The principal change which sulphur undergoes in the metabolic 

 process is its oxidation from the organic form to the highly oxidized 

 form of sulphuric acid, or sulphates. In other words, the greater 



