CHAP, ii.] RESPIRATION. 601 



with the red corpuscles. Indeed further investigations are necessary 

 before the matter can be said to have been placed on a satisfactory 

 footing. 



The relations of the Nitrogen in the Blood. 



353. The small quantity of this gas which is present in both 

 arterial and venous blood seems to exist in a state of simple solu- 

 tion. 



F. ii. 39 



