RELATION OF PROTEINE TO ALLANTOINE. 141 



the tissues in the foetal calf, considering the pro- 

 teine furnished in the blood of the mother as the 

 substance which undergoes or has undergone a 

 transformation ; it will appear that 2 at. of j^ro- 

 teine, without the addition of oxygen or any other 

 foreign element, except 2 at. of water, contain the 

 elements of 6 at. of allantoine and 1 at. of cholo- 

 idic acid, (meconium ?) 



2 at. proteine=2 (C48N6H36O14) +2at.water=2 liO=C,e^,.Uj,0^ 



6 at. aUantoine, 6 (C^N^H.Os) = C04N10H18O18 

 1 at. choloidic acid = C72 HjgOia 



={: 



C95N12H-4O30 



36. But the elements of the six atoms of al- 

 lantoine in the last equation correspond exactly to 

 the elements of 2 at. of uric acid, 2 at. of urea, 

 and 2 at. of water. 



r2 at. uric acid C^oNg Hg O12 

 6 at. of allantoine = C24Ni2Hi80ig=<! 2 at. urea C4 N4 Hg O4 



1 2 at. water H2 O2 



The relations of allantoine, which is found in the 

 urine of the foetal calf, to the nitrogenised con- 

 stituents of the urine in animals which respire, are, 

 as may be seen by comparing the above formuhr, 

 such as cannot be overlooked or doubted. Allan- 

 toine contains the elements of uric acid and urea — 

 that is, of the nitrogenised products of the transfor- 

 mation of the compounds of proteine. 



37. Further, if to the formula of proteine, multi- 

 plied by 3, we add the elements of 4 at. of water. 



