SERIES XI. 



THE EFFECT OF SULPHUROUS ACID AND SODIUM SULPHITE ON 

 THE DISTRIBUTION OF THE NITROGENOUS ELEMENTS OF THE 

 URINE. 



INTRODUCTION. 



This special study was undertaken in the spring of 1905 to supple- 

 ment the work already done in Series VII in regard to the effects of the 

 preservative on the distribution of the nitrogenous bodies in the urine. 

 The same methods of analysis were employed as in the special study 

 made in regard to salicylic acid and salicylates, the experiment having 

 been conducted at the same time. a 



SCHEDULE OF ADMINISTRATION OF THE PRESERVATIVE. 



In Table I are given the dates of the periods and subperiods for the 

 special study and the amounts of preservative administered: 



TABLE I. Schedule of administration of preservative, Series XL 



See Bulletin 84, Pt. II, p. 722. 



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