SULPHUROUS ACID AND SULPHITES. 



847 



TABLE X. Urine determinations Average daily increase or decrease of sulphur excreted 

 in the preservative and after periods over the fore period, as compared with the amounts 

 ingested, Series VII. 



PRESERVATIVE PERIOD. 



AFTER PERIOD. 



The sulphur increase or decrease in the food and feces is added to 

 the table in order to show whether the apparently abnormal increase 

 in the elimination could be due to an increase in the amount ingested 

 in food or to a diminution in the amount eliminated in the feces. 



An inspection of the table shows in all but three of the cases a 

 decrease in the amount of sulphur in the food during the preservative 

 period, the average for the 12 men showing 52 milligrams of sulphur 

 less than in the fore period. The sulphur in the feces shows some 

 variation, biit not enough in magnitude or regularity to warrant the 

 conclusion that any of the sulphur of the preservative was eliminated 

 through this channel, the average increase for the 12 men amounting 



