SALICYLIC ACID AND SALICYLATES. 



557 



TABLE IX. Urine determinations Ratio of sulphur, sulphates, and phosphates to nitro- 

 gen Series VI Continued. 



[Averages are per man per day.] 

 Snmnaary for nine men. 



CHANGES IN THE RELATIVE QUANTITIES OF SULPHUR COMPOUNDS 

 EXCRETED IN THE URINE. 



The changes which the urine may undergo in respect of its relative 

 content of sulphur compounds are of great physiological importance. 



For the purpose of determining the extent of any such changes an 

 elaborate study was made of the total sulphur, sulphates, and other 

 sulphur compounds excreted in the urine. To this end not only was 

 the total sulphur determined, but also the amount occurring naturally 

 as sulphates and that occurring as ethereal compounds of sulphur or 

 as neutral sulphur. The data were compared with the respective 

 quantities of sulphur administered in the food and the ratio of ethereal 



