164 



THE SECRETIONS: 



1. 2. 



Water .... 953-98 965-11 



Solid constituents . . . 46-02 34-89 



Urea . . . 18-92 11'08 



Uric acid . . '89 '54 



Lactic acid and lactates . 4-89 



Extractive matter soluble in water 2-80 



alcohol 8-32 8-78 



Mucus . . -11 



Chlorides of sodium and ammonium 2-74 



Sulphates . . 3-25 2-98 



Phosphate of soda . . 3-01 2-48 



Earthy phosphates . . I'OO 



On the second day 977 grammes, and on the third 1113 

 grammes of urine were discharged, so that the whole amount 

 was calculated as follows : 



On the 2d day. On the 3d day. 



Solid constituents . . 44-524 grammes 38-836 grammes 



Urea . . . 18-484 12-332 



Uric acid . . . -869 -601 



Lactates . . . 4-865 5-687 



Extractive matters . . 10-864 12-844 



In conclusion, the following table gives the mean daily 

 amount of the various solid constituents during these different 

 systems of diet : 



Mixed diet. Animal diet. Vegetable diet. Non-nitrogenous diet. 



Solid constituents . 67'82 87'44 59-24 41-68 grammes 



Urea . . 32-50 53-20 22-48 15-41 



Uric acid . 1-18 1-48 1-02 -73 



Lactic acid and lactates 2-72 2-17 2-68 5-82 



Extractive matters . 10-49 5-20 16-50 11-85 



Lehmann 1 has likewise examined the effect of severe bodily 

 exercise on the urine, and has found that the urea, lactic acid, 

 phosphates, and sulphates are increased, while the uric acid and 

 extractive matters are diminished. The following are the mean 

 results obtained from the frequent examination of the daily 

 urine during a pedestrian tour : 



Wagner's Handworterbuch der Physiologic : Art. Harn. vol. 2, p. 21. 



