CHAPTER XII. 



URINE AND ITS CHIEF CONSTITUENTS. 



A. The average composition. 



The composition of the urine varies with the individual 

 and with the diet. Below we given the figures in grams, for 

 the daily output of 



A. The average man on the average mixed diet. 



B. An individual on a liberal diet. 



C. The same individual on a diet deficient in proteins. 

 B. and C. are taken from a paper by Folin. 



