544 ANALYSES OF MICHAELIS. 



colourless, but contained more carbon than the 

 chyle of dogs. (Medico-Chirur. Trans, vol. vi.) 

 And that the venous blood of all animals con- 

 tains more combustible matter than that of the 

 arteries, would appear from the following results 

 of Michaelis, which were obtained by analyzing 

 the colouring matter, fibrin, and albumin, sepa- 

 rately, of blood taken from the calf. (Schweig- 

 ger's Journal, vol. liv.) " Nor can there be a 

 doubt, that when a sufficient number of similar 

 experiments shall have been performed on the 

 blood of different animals, they will be found to 

 correspond with the results of Dr. Marcet." 



Colouring matter in Fibrin in 



Venous blood. Arterial blood. Venous. Arterial. 



Carbon 53.231 51.382 50,440 51.374 



Nitrogen 17.392 17.253 17.207 17.587 



Hydrogen 7.711 8.354 8.228 7.254 



Oxygen 21.666 23.011 24.065 23.787 



Albumin in Albumin in 



Venous blood. Arterial blood. 



Carbon 52.650 53.009 



Nitrogen 15.505 15.552 



Hydrogen 7.352 6.993 



Oxygen 24.484 24.436 



Now if we take the average of the whole, it will 

 be found that the proportions are as follows : 



Venous blood. Arterial blood. 

 Carbon 156.321 155.765 



Nitrogen 50.104 50.402 



Hydrogen 23.298 22.601 



Oxygen - 70.215 71.234 



