KIDNEYS. 



169 



967.0 

 14.230 



10.635 



COMPOSITION OF URINE. 



Water 



Urea 



Other nitrogenized crystalline bodies, uric 

 acid, principally in the form of alkaline 

 urates, 



Creatin, creatinin, xanthin, hypoxanthin, 



Hippuric acid, leucin, tyrosin, taurin, cystin, 

 all in small amounts, and not constant, 



Mucus and pigment, 



Salts 



Inorganic: principally sodium and potassium ^ 

 sulphates, phosphates, and chlorids, with 

 magnesium and calcium phosphates, traces 

 of silicates and chlorids, 



Organic: lactates, hippurates, acetates, for- 

 mates, which appear only occasionally, 



Sugar a trace 



Gases (nitrogen and carbonic acid principally). 



8.135 



1,000.000 



The average quantity of the principal constituents excreted in 

 twenty-four hours is as follows : 



Water 52.0 fluidounces. 



Urea 512.4 grains. 



Uric acid 8.5 " 



Phosphoric acid 45.0 " 



Sulphuric acid 31.11 " 



Inorganic salts 323.25 " 



Lime and magnesia 6.5 " 



To determine the amount of solid matters in any given amount 

 of urine, multiply the last two figures of the specific gravity by the 

 coefficient of Haeser, 2.33 e. g,, in 1,000 grains of urine having a 

 specific gravity 1022, there are contained 22X2.33 = 51.26 grains 

 of solid matter. 



