EXCRETION 



437 



Titratable acidity in c.c. of decinormal acid - 617 j or g an i c ' 



Indican (Fehling's solution =100*) 

 Volume of urine 



- 77 



- 1430 c.c. 



The great influence of diet on the composition of the urine is 

 illustrated in the following table. Urine I. was obtained from a 

 man weighing 87 kilos on the standard protein-rich diet described 

 above. Urine II. was obtained from the same person on a diet 

 very poor in protein (400 grammes of starch and 300 c.c. of cream), 

 containing only about i gramme of nitrogen, as against 19 grammes 

 in the first diet. 



Titratable acidity in c.c acid - 805 

 10 



mineral 



32 4 



(mineral 



(organic 407 * T (organic 201 

 Indican (Fehling's solution = 100) - 120 - o 



* The indican is given in arbitrary units, the indigo-blue being obtained 

 from the urine and then estimated colorimetrically, using Fehling's solu- 



