24 THE SECRETIONS: 



Bile of Animals. 



The bile of animals has been examined by Berzelius, Gmelin, 

 Thenard, myself and other chemists. 



[According to the latest observations of Berzelius, filtered 

 ox- gall, when evaporated to dryness at a temperature of 266, 

 gives off 928-38 parts of water, and leaves 71-62 of solid residue, 

 consisting of 



Mucus ...... 2-310 



Extractive matter insoluble in alcohol, with alkaline sulphates 



and phosphates ..... 4 '334 

 Chloride of sodium, lactate of soda, and extractive matter 



soluble in alcohol . . . . 15-000 



Bilin and cholepyrrhin .... 50-000 



Cholesterin . . . . . -001 



According to Enderlin, 1 the following salts occur in the 

 bile of the ox : 



Choleate (or bilate) of soda, 



Tribasic phosphate of soda, 



Alkaline sulphates, 



Chlorides of sodium and potassium, 



Phosphate of lime, 



Phosphate of magnesia, 



Phosphate of peroxide of iron, and occasionally 



Sulphate of lime. 



The bile of the ox and of the swine has likewise been analysed 

 by Thenard, and the bile of the dog by Gmelin, but the de- 

 scriptions are of so vague a character as to be of little or no use. 

 The same objection applies to their examination of the bile of 

 various birds.] 



In the bile of the Python bivittatus Berzelius found bilin (as in 

 the mammalia), a small quantity of bilifellinic acid, bile-pigment 

 the same as in other classes of animals, a little crystalline 

 biliary matter precipitable by carbonate of potash, similar to 

 that which occurs in the bile of fishes, ptyalin or a substance 

 resembling it, a peculiar animal matter soluble only in boiling 

 water, fatty acids, and the ordinary salts. The bile of the Coluber 



1 Annalen der Chemie imd Pharinacie, 1844. 



