Abstract
III. The lag was not removed by the addition of H acceptors which reduced the time necessary for the attainment of the maximum phosphate rate of CO2 production. The lag was accompanied by an increase in the amount of triose present.[long dash]IV. Phosphate solutions, saturated with CO2, have a pH of 6.2-6.3 when fermentation is taking place. Those dyes which accelerate fermentation by acting as H acceptors or carriers have an oxidation-reduction potential of 0.00-0.10 volt at pH 6.0.