136 RELATION OF BILE TO FIBRINE. 



elements of the urine of serpents that is, to neu- 

 tral urate of ammonia, as follows : 



the formula of choleic acid ...... = C^N H^On 



Add to this 

 1 eq. uric acid ...... = C 10 N 4 H 4 O 6 1 ^_ Q N , H _ Q 6 



1 eq. ammonia ...... = N H 3 J 



The sum is ........................ - C^NeH^Cv 



29. But this last formula expresses the composi- 

 tion of blood, with the addition of 1 eq. oxygen and 

 1 eq. water. 



Formula of blood ........................ C^NgHagOjs 



1 i- water .................. - HO ~U H o 2 



1 eq. oxygen .................. = Oj 



The sum is ........................... = 



30. If, moreover, we add to the elements of pro- 

 teine those of 3 eq. water, we obtain, with the ex- 

 ception of 1 eq. hydrogen, exactly the same formula. 



Formula of proteine .................. = C^NsE^O^ 



Add 3 eq. of water .................. = H 3 O 3 



The sum is ........................ 



differing only by 1 eq. of hydrogen from the formula 

 above obtained by adding together choleic acid and 

 urate of ammonia. 



31. If, then, we consider choleic acid and urate 

 of ammonia the products of the transformation of 

 muscular fibre, since no other tissue in the body 

 contains proteine (for albumen passes into tissues, 

 without our being able to say, that in the vital pro- 

 cess it is directly resolved into choleic acid, and 

 urate of ammonia), there exist in fibrine, with the 



