348 



THE SECRETIONS : 



parent, and containing urea, sulphates of potash and soda, chlo- 

 rides of potassium, sodium, and ammonium, and traces of car- 

 bonate and sulphate of lime. Van Setten 1 has communicated 

 a special analysis of the urine of a pig. It was yellow, almost 

 inodorous, and had a specific gravity of 1003. 

 There were contained in 1000 parts : 



[The urine taken from the bladders of pigs immediately 

 after they were killed is described by Von Bibra as clear, nearly 

 devoid of odour, alkaline, and having a specific gravity of 1012 

 to 1010. In two cases in which he analysed it he found in 

 1000 parts : 



1. 



981-96 

 18-04 

 2-73 



Water 



Solid constituents 



Urea 



Alcohol-extract 



Water-extract 



Mucus 



Soluble salts . 



Insoluble salts 



3-87 

 1-42 

 0-05 

 9-09 



0-88 



2. 



982-57 

 17-43 

 2-97 

 3-99 

 1-12 

 0-07 

 8-04 

 0-80 



The salts in the first of these analyses consisted of : 



Chloride of sodium and a little chloride of potassium 53-1 

 Sulphate of soda . . . .7-0 



Carbonate of potash . . . 12-1 



Phosphate of soda . . . 19*0 



Phosphates of lime and magnesia, with traces of 



silica and iron . . . .8-8 



100-0 



Natuur en Scheidekundig Archiv, Deel 2. 



