OXYGEN AFFINITY AND OXIDATION-REDUCTION POTENTIAL 277 



Conant has discussed. While this would be of interest, we can only 

 emphasize our belief that these powerful mathematical methods 

 should be applied in parallel with attempts to analyze the effect on 



1.2 



8 o-« 



1-! 



0.4 



7 



2.4 



X 



0.8 



7 



10 



Fig. 10. Wyman's theory and fit of curves describing dependence of gas saturation 

 and oxidation-reduction potential on ^H with observed curves (after VVyman and 

 Ingalls, 3136). A: O, values of log p, the oxygen dissociation pressure at 5(,% satura- 

 tion in relation to pH, from the data of Ferry and Green; •, values of log p calculated 

 from the oxidation-reduction potentials given by Taylor and Hastings. B: •, oxida- 

 tion-reduction voltages X 16.63 for 50% oxidation", from the data of Taylor and 

 Hastings; O, values of the same calculated from the oxygen dissociation pre.ssures 

 given by Ferry and Green. All curves are calculated on the basis of dissociation 

 constants discussed in the text. 



