RESPIRATION jgi 



the alveolar CO 2 pressure remains low for about an hour. 17 We 

 attributed this to the effect on the respiratory center of lactic acid 



10 15 20 25 30 35 40 45 50 55 60 65 70_ 75 



Figure 54. 



Blood, + Serum, O Corpuscles of same sample. El Blood, 

 X Serum of another sample. / Blood of another sample. 

 Another sample of blood. Same sample with acetic acid added. 



O 8 parts Na 2 HPO 4 and 2 parts KH 2 PO 4 . Q Equal 

 IS IS 



parts Na 2 HP0 4 and KH 2 PO 4 . KC1 solution. 

 15 10 



given off into the blood by muscles in which the work had been 

 far in excess of the possible oxygen supply. The correctness of 



"Douglas and Haldane, Journ. of PhysioL, XXXVIII, p. 43 1, 1909. 



