Sulphur in Urine. 



399 



Total sulphur. The excretion of total sulphur expressed as S0 3 in the 

 fasting experiments here reported is given in table 208. The averages, ex- 

 pressed as S and S0 3 , are both included in the table. 



At the time these determinations were made Folin's critical discussion of 

 the method of determining sulphur had not appeared and hence these deter- 

 minations are probably subject to all the errors there pointed out. Nevertheless, 

 they represent a determination as accurate as most of the earlier work, and 

 also, in all probability, give results that are comparable so far as the different 

 days of the same experiment are concerned. 



Table 207. Amounts of sulphur (as SOJ eliminated in urine daily by fasting 



subjects. 



1 Reported by A. Sadovyen (2). 



3 Probably inorganic and ethereal. Given by the investigator as H2SO4, but converted to 

 SO3 for purposes of comparison. 



8 Probably inorganic and ethereal. 



* Given by the investigator as sulphur, but converted to S0 3 for purposes of comparison. 

 B Given by the investigator as H2SO4, but converted to S0 3 for purposes of comparison. 



* Calculated by difference from the total and inorganic and ethereal SO3. 



7 Discrepancies in the figures for total and inorganic and ethereal SO s makes calculation 

 of neutral S0 3 impossible. 



* Probably does not include ethereal sulphur. 



8 Calculated by difference from the total and neutral SO3. The figure obtained by con- 

 verting the H2SO4 as originally reported to S0 3 is 0.983 gram. 



The total excretion of sulphur trioxide on the first day of these fasts ranges 

 from 0.969 gram to 2.173 grams, averaging for the 12 experiments 1.468 

 grams. On the second fasting day, the variations are from 1.506 to 2.148 

 grams, and the average is 1.806 grams. In all but two cases, experiments Nos. 

 83 and 85, there was a distinct increase in the amount on the second day 

 over the first. 



